REI.com
  • Online: www.REI.com
  • URL for this product:
  • From the U.S. and CanadaCall 1-800-426-4840
  • Mon. through Sun., 4 a.m. through 11 p.m. PT.
  • InternationalCall 1-253-891-2500
  • Mon. through Sun., 4 a.m. through 11 p.m. PT. English language only.
Amphipod Full-Tilt AirStretch Velocity Hydration Waistpack - 20 fl. oz.

JAZZED

    Amphipod Full-Tilt AirStretch Velocity Hydration Waistpack - 20 fl. oz.

    • $39.95
    4
    (16)

    Item # 813463

    Product size and color
    • 100% Satisfaction Guaranteed
    • Gear and Advice You Can Trust

    Orders of $50 or more ship for free. Learn more

    To view videos or use the zoom feature on REI's websites, please download the latest version of Adobe Flash Player.
    _

    • NOW PLAYING

    The Amphipod Full-Tilt AirStretch™ Velocity hydration waistpack offers a lightweight design and a low profile that help eliminate the discomfort of traditional bottle packs.

    • Adjustable AirStretch belt features ample stretch and chafe-free edging for comfort while maintaining bounce-free performance
    • Back-friendly symmetrical design eliminates uneven weighting, chafing and uncomfortable pressure points
    • AirFlow Mesh™ hybrid mesh technology wicks away moisture and circulates air between your back and the pack
    • 40 cu. in. compartment holds key, ID and cash
    • BPA-free 20 fl. oz. Hydraform™ water bottle nests laterally for a naturally comfortable fit
    • Low-profile bottle flattens center of gravity, reducing slosh and bounce
    • The Amphipod Full-Tilt AirStretch Velocity hydration waistpack securely holds its bottle in place and accommodates easy bottle access

    Imported.

    Item 813463

    $7.99
    on this item with coupon code
    REIANNV through May 28.
    Not a Member?   Join now

    How to Use Your 20% Off Coupon:

    Online, at REI.com and REI-OUTLET.com
    • If you're an REI member: At steps 3 and 4 of checkout under REI Membership, enter your membership number and coupon code REIANNV. Note: Check "Use my dividend on this order" and we'll apply your dividend balance toward your purchase.
    • If you're not yet an REI member: Include an REI membership for a one-time $20 fee with your purchase and use coupon code REIANNV at checkout. (You won't have to enter a membership number.) Note: You will have the opportunity to buy a membership at checkout.
    • Coupon applies to highest-priced eligible item. Coupon good through 5/28.
    AT REI STORES
    • If you're an REI member: At checkout, provide coupon code REIANNV (or a printout of this coupon) and your REI membership number to the cashier. Note: Ask to have your dividend balance applied toward your purchase.
    • If you're not yet an REI member: At checkout, include an REI membership for a one-time $20 fee with your purchase and provide coupon code REIANNV (or a printout of this coupon) to the cashier.
    • Coupon applies to highest-priced eligible item. Coupon good through 5/28.
    BY PHONE: 1-800-426-4840
    • If you're an REI member: Provide coupon code REIANNV and your membership number when you call in your order. Note: Ask to have your dividend balance applied toward your purchase.
    • If you're not yet an REI member: Include an REI membership for a one-time $20 fee with your order and mention coupon code REIANNV .
    • Coupon applies to highest-priced eligible item. Coupon good through 5/28.
    Exclusions:
    • Offer valid 5/17/12 9pm PT – 5/28/12 11:59pm PT.
    • Coupon (or coupon code) must be presented at time of purchase. Online and phone customers must use code "REIANNV" to receive this discount.
    • Offer valid at REI.com, 1-800-426-4840 and REI stores.
    • Offer not valid on REI-OUTLET.com items, REI Adventures or REI Outdoor School.
    • Offer not valid on sale items (prices ending in $ ._3 or $ ._9).
    • REI membership number is required at checkout. Not a member? You can join for a one-time $20 fee during checkout.
    • Offer not valid on special orders, package discounts, prior purchases, REI gift cards or e-gift cards, passes and tickets, gift boxes, memberships, shop services, rentals.
    • Offer not valid on bicycles, strollers, hard shell boats or stand up paddleboards.
    • Offer not valid on any item with GPS technology, personal locator beacons.
    • Offer is limited to stock on hand and backorderable items, is nontransferable and is not redeemable for cash.
    • Merchandise purchased with this offer is not eligible for the REI member refund.
    • Offer may not be combined with any other discount or offer.
    • Limit one coupon per customer.
    • To order by phone, call 1-800-426-4840 Mon. through Sun., 4am to 11pm PT.
    • Cashier Instructions: Apply 20% line discount to highest full-price item; please refer to exclusions.

    REI Membership

    Amphipod Full-Tilt AirStretch Velocity Hydration Waistpack - 20 fl. oz. Specs
    Specification
    Description
    Best use
    Running
    0.59 liters
    20 fluid ounces
    0.65 liters
    40 cubic inches
    8.5 ounces
    0.24 kilograms
    21 - 48 inches
    1 main compartment
    Top
    Nylon/polyester
    10 x 5 x 3 inches
    Unisex
    Top
    8.5 ounces
    0.24 kilograms
    Liquid capacity (L)
    Liquid capacity (fl. oz.)
    Gear capacity (L)
    Gear capacity (cu. in.)
    Weight
    Weight - metric
    Fits waist/hips
    Number of exterior pockets
    Pack access
    Material(s)
    Dimensions
    Gender
    Pack loading
    Average weight
    Average weight - metric

    Amphipod Full-Tilt AirStretch Velocity Hydration Waistpack - 20 fl. oz. Customer Reviews

    REVIEW SNAPSHOT®

    by PowerReviews
    Amphipod Full-Tilt AirStretch Velocity Hydration Waistpack - 20 fl. oz.
     
    4.3

    (based on 16 reviews)

    94%

    of respondents would recommend this to a friend.

    Pros

    • Comfortable (16)
    • Stable (15)
    • Easy to refill (10)
    • Good water flow (9)
    • Highly adjustable (9)

    Cons

      Best Uses

      • Running (15)
        • Reviewer Profile:
        • Casual/ recreational (10), Avid adventurer (4)
        • What Is Your Gear Style:
        • Survivalist / minimalist (8), Comfort driven (7)
        • Was this a gift?:
        • No (14)

      Reviewed by 16 customers

      Sort by

      Displaying reviews 1-10

      Back to top

      Previous | Next »

      (6 of 6 customers found this review helpful)

       
      4.0

      I love it!

      By MikeandJen

      from Montana

      About Me Avid Adventurer

      See all my reviews

      Pros

      • Comfortable
      • Highly Adjustable
      • Large Capacity
      • Pocket stretch is awesome
      • Stable

      Cons

        Best Uses

        • Running

        Comments about Amphipod Full-Tilt AirStretch Velocity Hydration Waistpack - 20 fl. oz.:

        First, let me say I tried two other hydration waist packs before this one. I used a Camelbak Delaney Plus and thought it was an instrument of torture. Only made it 1/2 mile before thinking of flinging it into the bushes. Tried another REI pack, same result.

        I tried the Amphipod Velocity and I LOVE IT for the following reasons:
        1. Once I had the belt adjusted, I barely knew it was there. I wore it just below my belly button, with the bottle nested against my back. I love the elastic belt! (That is what was missing from the other two belts I tried). I had the water bottle and the pocket full.
        2. I did not have any issues with the water bottle being secure. It hardly bounced/moved except slightly on a long downhill part of my run and that was minimal. (I ran 11 miles of mountain roads with it, and no problem). The only thing I can say about the other guy who lost the bottle is maybe you didn't put the bungee over the bottle. You reinsert the bottle into the slot and push it slightly into the bungee to secure it. It worked just fine.
        3. The pocket appears small, but I fit my cell phone, a package of tissues, and a gel and could have fit more. It stretches like crazy!
        4. I love the flat water bottle. Very comfortable!

        My only complaint is the water bottle lid. I love the camelbak podium lid. I was able to switch it out...problem solved!

        I recommend this pack!

        • What Is Your Gear Style:
        • Comfort Driven
        • Was this a gift?:
        • Yes

        Comment on this review

        (4 of 4 customers found this review helpful)

         
        5.0

        Blew away my expectations

        By Darth Bling

        from Portland, OR

        See all my reviews

        Pros

        • Comfortable
        • Ease of Use
        • Easy To Refill
        • Expandability
        • Good Water Flow
        • Stable

        Cons

          Best Uses

          • Extended Hikes
          • Running

          Comments about Amphipod Full-Tilt AirStretch Velocity Hydration Waistpack - 20 fl. oz.:

          This thing is great! I was initially hesitant to buy a hydration belt, but it has been money very well spent. I bought the belt and then immediately went on an eight-mile run to check it out.

          EXPANDABILITY:
          One nice thing about Amphipod products is the module design of the belts. It's very easy to pick up extra bottles or pouches in case you need more storage. I was originally looking at getting the four bottle 32oz system, but then I decided to buy the single 20oz bottle belt plus two 10.5oz bottles for a total capacity to 41oz! And it only cost me a couple of dollors more than the 32oz belt. With my setup, I don't have a small storage pouch, but I can add that later if I decided I need one. I positioned the two 10.5oz bottles on either side of the larger bottle, so everything is behind me.

          STABILITY:
          I was worried the belt would bounce around too much when I run, much like a backpack. But to my amazement, it was surprisingly stable. It does bounces around a little bit (worsens when running downhill), but it's very mild and hardly a problem. After the first mile, it wasn't even a distraction anymore.

          COMFORT:
          This thing is also surprisingly comfortable. I'm guessing the stretchy belt helps in that department a lot. After running eight miles, I had no sore spots on my hips or waist, no rash, nothing.

          EASE OF USE:
          Removing the bottle from the pouch is very easy to do. Just make sure you throw the loop over the top end of the bottle so it doesn't fall out. The pair of 10.5oz bottles that I added also works remarkable well too. They're very easy to grab and even easier to snap back into place.

          OTHER CONSIDERATIONS:
          I did read online some discussion of hand-held bottles vs belts. One of the main faults with the belts is the use of multiple bottles. This apparently makes refilling more difficult and time-consuming, which can be detrimental during a race. Hand-held bottles on the other hand tend to be easier to refill. This was another reason why I went with the 20oz bottle system and then purchased a pair of 10.5oz bottles. All of the Amphipod bottles have decently sized openings, so refills should be relatively fast. Plus, I only have three bottles to refill instead of four.

          The large size of the 20oz bottle, plus the fact that it resides inside a sleeve, gives it an advantage of staying cool longer than other bottles. In my case, I put ice into my 20oz bottle so it has the best change to stay cold, and then I drink out of my extra 10.5oz bottles first.

          • Was this a gift?:
          • No

          Comment on this review

          (3 of 3 customers found this review helpful)

           
          5.0

          Best in class bottle waist belt

          By peterbronski

          from Poughkeepsie, NY

          About Me Avid Adventurer

          See all my reviews

          Site Member

          Pros

          • Comfortable
          • Stable

          Cons

            Best Uses

            • Running

            Comments about Amphipod Full-Tilt AirStretch Velocity Hydration Waistpack - 20 fl. oz.:

            Seldom do I feel compelled to write gear reviews, but in this case I couldn't resist. The Amphipod Full-Tilt AirStretch Velocity Hydration Waistpack is the best I've used, bar none.

            I'm 5'6" and 155 lbs. I do almost exclusively trail running, 25-50+ miles per week, and compete in 50K to 50-mile ultramarathons. Until somewhat recently, I would run with a Camelbak hydration pack during ultras and long-distance trail running training. However, refilling the pack slowed my time during aid station transitions (take the pack off, pull out the bladder, have a volunteer refill it, put the bladder away, put the pack back on...). Biomechanically, handhelds have never appealed to me, as they do for many ultra runners. I prefer to keep my hands free, and it makes sense to have the water weight hug the small of your back. Hence I've been drawn to the idea of a bottle waist belt.

            After trying several belts that hold a roughly 20oz bottle at a 45-degree angle, including the Nathan Elite and the Ultimate Direction Access Airflow, I was disappointed. They had some bounce, sloshed loudly when partially full, and developed hot spots near the top and bottom where the bottle contacted my back. The Nathan bottle leaked terribly, causing preliminary frostbite on my backside during a run in sub-freezing weather. The UD pack broke before I ever took it out for a single run, causing serious durability concerns.

            I'd been eyeballing the Amphipod Full Tilt series. It seemed the horizontal bottle would fit perfectly in the small of my back, as long as the bottle wouldn't leak in that position. In short, I've been extremely impressed.

            I adjusted the waist belt so that it fits comfortably, but not overly, snug. The bottle sits in the small of my back, and the waist belt clips in front one to two inches below my navel. The bottle is rock solid. It hasn't budged on trail runs of 10 to 15 miles. No bounce, at all. When partially full the sloshing in the bottle is very quiet and barely noticeable. In addition, the horizontal positioning of the bottle is easier on my shoulder when removing and replacing the bottle, compared to 45-degree holders that require me to reach higher to slide the bottle in and out.

            The small bungee that prevents the bottle from slipping out of the holder is easy to operate, even while running. I thought it would be annoying, but after the first run it became surprisingly quick and intuitive to use. My only critique is that the bungee has a small plastic "knob" you can grab to release it off the bottle top. When my fingers are sweaty, or when I have less dexterity because of gloves during cold weather, it can be difficult to grasp. I'll likely retrofit it with a small nylon pull tab that's easier to grab.

            The small stretch pocket on the back of the pack easily holds a key, cell phone, and/or gel packs. I find that when the bottle is in the holder, it's more difficult to reach into the zippered opening. Removing the bottle so there's less tension in the pack makes getting into the pocket easier. The pocket fabric did also snag/develop a run from the corner of a gel packet foil. I'm going to add a small zipper pouch to the front of the belt for gels, so they're easier to access, and just stash keys or a phone in the back of the pack where they're out of the way.

            The bottle itself is great. Comfortable shape in the hand, snug against the back, easy to squeeze, and the nipple/spout is as high flow as any I've used.

            After tweaking my hydration for a while now, I've finally found an incredible setup.

            • What Is Your Gear Style:
            • Minimalist
            • Was this a gift?:
            • No

            Comment on this review

            (3 of 3 customers found this review helpful)

             
            5.0

            Yes, You're Missing Something.

            By More Oxygen Please

            from Raleigh, NC

            About Me Casual/ Recreational

            See all my reviews

            Site Member

            Pros

            • Comfortable
            • Easy To Refill
            • Highly Adjustable
            • Stable

            Cons

              Best Uses

              • Running

              Comments about Amphipod Full-Tilt AirStretch Velocity Hydration Waistpack - 20 fl. oz.:

              This is a great waistpack. Cinch it up enough and it doesn't move at all -- you will forget it's there. The zippered pocket is just big enough to hold my iPhone and a GelPak. I have done dozens of miles of trail running with this pack, and recommend it without reservation.

              The previous reviewer obviously put the bottle in backwards, and/or didn't secure the nozzle with the little strap that keeps the bottle in place. Even the picture on the product listing here hows exactly how this works. And it works perfectly, and is very very easy. Please don't be scared off by a reviewer who either has an agenda, or who did not take ten seconds to understand how the bottle gets secured.

              Anyhow, I'm here to buy another of these for my wife for her birthday. She asked for one today after seeing how well it works for me and hearing me rave about it.

              • What Is Your Gear Style:
              • Minimalist
              • Was this a gift?:
              • No

              Comment on this review

              (2 of 2 customers found this review helpful)

               
              5.0

              Outstanding Product

              By tippboy

              from Miller Place, NY

              About Me Casual/ Recreational

              See all my reviews

              Pros

              • Comfortable
              • Easy To Refill
              • Good Water Flow
              • Stable

              Cons

                Best Uses

                • Running

                Comments about Amphipod Full-Tilt AirStretch Velocity Hydration Waistpack - 20 fl. oz.:

                I have run over 100 miles with the full tilt and never had a problem. It's comfortable to wear, you forget it's there after a while. There is no sloshing sound from the bottle and the bottle never falls out due to the simple but effective elastic band that keeps it in place. I'm training for my first marathon and I'm about to buy the Amphipod RunLite 4 for my long runs, based on my satisfaction with the full tilt. Overall a great product!

                • What Is Your Gear Style:
                • Minimalist

                Comment on this review

                (2 of 9 customers found this review helpful)

                 
                1.0

                Bottle Falls Out

                By Jim2

                from Thousand Oaks, CA

                About Me Casual/ Recreational

                See all my reviews

                Site Member

                Pros

                • Comfortable

                Cons

                • Poor Construction

                Best Uses

                • Slow Walk

                Comments about Amphipod Full-Tilt AirStretch Velocity Hydration Waistpack - 20 fl. oz.:

                As soon as I opened the product I was wondering how the bottle was going to stay in place. It appears to only be secured on one side with the other side completely open.

                I just returned from my first running using it. After the first few miles I thought the product was excellent. The weather is getting warmer, so I really needed some hydration for an extended run. I almost forgot I had the product on. I was also able to put my PDA in the back pocket, thus I was able to drop my arm band which is not very comfortable. Then at about mile 6 I reach back for a drink and the bottle was gone!! I cut my run short and headed home very thirsty! Luckily I was able to find the bottle. However, if I can not figure out how to better secure the bottle this product is going to be useless.

                If I am missing something I would like to know, but otherwise at the moment, I wouldn't buy this unless you plan to take easy walks with it.

                • What Is Your Gear Style:
                • Comfort Driven
                • Was this a gift?:
                • No

                Comment on this review

                (1 of 1 customers found this review helpful)

                 
                5.0

                Comfortable and functional fuel belt

                By pinkfroggrrl

                from Dearborn, MI

                About Me Casual/ Recreational

                See all my reviews

                Site Member

                Pros

                • Comfortable
                • Highly Adjustable
                • Stable

                Cons

                  Best Uses

                  • Running

                  Comments about Amphipod Full-Tilt AirStretch Velocity Hydration Waistpack - 20 fl. oz.:

                  This is my first fuel belt and I hope I will never need another (unless this one is made for years and year to come). After about 3 miles of running, I require a drink and this was the perfect companion to my 5 mile run today. The belt is very adjustable and very comfortable. It is designed for the bottle to sit at the small of your back. The bottle is curved which makes it contoured to both your body and your hand when you pull it out to take a drink. There is a little bungee cord that wraps around the mouthpiece that helps to keep the bottle in place.

                  Do not let the size of the storage pocket fool you. It is tiny but HIGHLY stretchable. Today I just put my car key inside it but to test it's capacity, I shoved my Droid 3 phone (it's bulky) and a packet of energy chews. I didn't think it would fit but it did.

                  The bottle is nice because it is not hard plastic. You can squeeze it if you need to take a drink. It's not flimsy plastic either.

                  I am tall (5'11") with wide hips and this belt fit right about at my waist with extreme comfort. I didn't really notice it was there. I did reach around with my hand a few times to check if the bottle moved at all and it really stayed in place. I was running on city streets and not a trail.

                  Also, it was easy to reach around back to pull the bottle out for a drink and to replace it without having to move the belt or take it off.

                  • What Is Your Gear Style:
                  • Minimalist
                  • Was this a gift?:
                  • No

                  Comment on this review

                   
                  5.0

                  Great running belt

                  By mbushnell

                  from Charlotte, NC

                  About Me Casual/ Recreational

                  See all my reviews

                  Site Member

                  Pros

                  • Comfortable
                  • Easy To Refill
                  • Great design
                  • Stable

                  Cons

                    Best Uses

                    • Running

                    Comments about Amphipod Full-Tilt AirStretch Velocity Hydration Waistpack - 20 fl. oz.:

                    I bought this product to replace a Nathan running belt that I used previously. There were two problems with the Nathan belt that I was trying to solve...1) the pocket on the Nathan belt was just far too small and 2) the water bottle and belt were just bulky.

                    After reading about a few different belts, I decided to give the Amphipod belt a try. The semi-flat bottle seemed like a plus, and all of the reviews on here were great. After using this belt for the past week, and I can say is that it was money well spent!

                    First, the pocket on the belt is much larger than my old Nathan belt. I could barely get my driver's license in the Nathan belt, much less my iPhone or anything else. I can get a gel pack or two, my iPhone, and my house key in this pocket no problem. Second, the semi-flat bottle and the overall design is just much better than the Nathan. The belt and bottle curves with your back and the strap is made of a nice material. To top it off, I barely even notice the belt when I'm running.

                    This belt is everything I was looking for to replace my old Nathan product. Couldn't be happier with it, and I plan on using it for many runs in the future.

                    • What Is Your Gear Style:
                    • Minimalist
                    • Was this a gift?:
                    • No

                    Comment on this review

                     
                    3.0

                    Workmanship disppointed

                    By Sincethe70s

                    from Washington DC

                    About Me Environmentalist

                    See all my reviews

                    Site Member

                    Pros

                    • Comfortable
                    • Easy To Refill
                    • Good Water Flow
                    • Stable
                    • Works as intended

                    Cons

                    • Poor Construction

                    Best Uses

                    • Running

                    Comments about Amphipod Full-Tilt AirStretch Velocity Hydration Waistpack - 20 fl. oz.:

                    I have been running for decades. This is the first hydration device that didn't bump up and down or leak. But the third time I used it the zipper pull sealed my keys inside the zip pocket as it slipped off the track. I should have known this would happen, because I noticed that the stitching was coming unraveled at that far end of the pocket.

                    I will return the unit for a swap. If the next one fails this way I will give up and add a review.

                    Otherwise, I would recommend this pack. IF -- and I mean IF - you secure the little bungie around the top of the water bottle, this pack works really well with enough water to get you through an hour run on a room temp day. The pack fits the bottle against the small of your back. The neoprene belt tightens well enough that there is little jiggle. The pocket (the one with the failed zipper) has enough room to hold an iPhone, i.d. and some money.

                    • What Is Your Gear Style:
                    • Comfort Driven
                    • Was this a gift?:
                    • No

                    Comment on this review

                     
                    4.0

                    Functional and stable

                    By Tincan

                    from Oakley, CA

                    About Me Casual/ Recreational

                    See all my reviews

                    Site Member

                    Pros

                    • Comfortable
                    • Easy To Refill
                    • Good Water Flow
                    • Highly Adjustable
                    • Large Capacity
                    • Stable

                    Cons

                      Best Uses

                      • Running

                      Comments about Amphipod Full-Tilt AirStretch Velocity Hydration Waistpack - 20 fl. oz.:

                      I've used this belt on many runs of 10K and up and it has worked out very well. My only complaint is that the buckles loosen easily so it's important to re-tighten the belt before each run. If the belt is tight enough, with the bottle positioned over the small of my back there is almost no bounce and after the first few runs I was completely comfortable with it. I have had no issues with the bottle falling out, I can only speculate that the reviewers who have had that problem did not secure it with the bungee keeper. I've added Amphipod's pouch for my large cellphone and that works well also.

                      I give this waist pack only four stars because of the slipping buckle issue, but that's a minor problem and overall this is a very good product.

                      • What Is Your Gear Style:
                      • Comfort Driven
                      • Was this a gift?:
                      • No

                      Comment on this review

                      Displaying reviews 1-10

                      Back to top

                      Previous | Next »

                      How are we doing? Give us feedback on this page.

                      FREE U.S. STANDARD SHIPPING on orders of $50 or more.

                      Shop THE REI ANNIVERSARY SALE May 18–28. Plus, members SAVE 20% on one full-price item with coupon code REIANNV. Details

                      • Join REI today!
                      • REI Membership
                      • REI member benefits include an annual refund (typically 10% on eligible purchases).
                      • Join REI today!
                      • Sign up for REI Gearmail®
                      • and get 15% off selected items!
                      • Store Locator
                      • Locate an REI store near you.
                      • Find a Store

                      Find REI on: FacebookTwitterYouTubeFlickr