• Online:
  • 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.

CamelBak Alpine Explorer Hydration Pack - 100 fl. oz.

This item is currently sold out or unavailable online.

Or, may we suggest shopping for similar items:

Shop more Hydration PacksShop more CamelBak

This page is provided for reference to historical product information.

The CamelBak Alpine Explorer hydration pack has great cargo capacity, technical features and easy access to the reservoir inside. It's perfect for fast-paced, done-in-a-day endeavors.

  • Dynamic Suspension™ harness with Slider™ sternum strap sports shoulder straps that adjust automatically to find a comfortable position on wide or narrow shoulders
  • Comfortable hipbelt is removable
  • Air Director™ back panel features foam pods covered in soft mesh that create multiple ventilation channels, helping ensure air flow and comfort
  • 100 fl. oz. Antidote™ reservoir features a welded center baffle and a low-profile shape for stability
  • Quick Link™ system lets you effortlessly add accessories such as a Fresh™ filter, insulated tube, tube director, flow meter or hanger (accessories sold separately)
  • Hydration sleeve holds the reservoir flat against your back to leave more room for layers and gear
  • Wide mouth makes it easy to fill and clean the reservoir; quick-snap cap tightens in just a quarter turn
  • Folding arms lock into position to hold the reservoir open when drying; arms tuck out of the way around the port when not in use
  • Features include an organizer pocket, quick-stash stuff-it pocket, sunglasses/media pocket, tool attachment points, mesh side pockets and 4-point compression straps
  • The CamelBak Alpine Explorer hydration pack is assembled in the U.S. of domestic and foreign components


Item 830501

REI Membership

CamelBak Alpine Explorer Hydration Pack - 100 fl. oz. Specs
Best use
27 liter
1,648 cubic inches
3 liter
100 fluid ounces
2 lbs. 3.2 oz.
1 kilogram
Up to 23 inches
Up to 48 inches
Diamond ripstop nylon/nylon
5 + main compartment
21.5 x 10.5 x 10.5 inches
Frame type
Gear capacity (L)
Gear capacity (cu. in.)
Liquid capacity (L)
Liquid capacity (fl. oz.)
Weight - metric
Adjustable torso
Fits torso
Fits waist/hips
Pack loading
Number of exterior pockets
Bite valve shut-off switch
Quick disconnect tubing
Wide-mouth opening

CamelBak Alpine Explorer Hydration Pack - 100 fl. oz.

Loading Ratings & Reviews...

CamelBak Alpine Explorer Hydration Pack - 100 fl. rated4.0out of5by9.
Rated5out of5byfromI love this pack!I put off buying this pack as I'm a bit of a Bag Man. This just means that I'm constantly buying different pack and bags. I have a pack for every occasion. For instance, I have a CamelBak Mayhem for biking/hiking, a Pit Boss (back and side country) and 3 Scorpion packs (resorts) and an Oakley Ski Pack for snowboarding. I also have numerous duffles but that is another review. So as I was saying I have bought a lot packs and was trying to hold off buying any more but REI had a sale and I promised myself this would be my last pack until the pack I have start to fall apart. I have no regrets about buying this pack. Lightweight, durable, numerous pockets and storage space, not to mention 100oz of water. And the thing I value the most: comfort. I don't want an uncomfortable pack when I'm planning on a 4-6hr hike. The breathable mesh and air channels on the back keeps me cool as well. The 2 side mesh pocket and large flap pocket are great for stowing/retrieving things easy. I do miss the loops on the shoulder strap that my Mayhem has which I use for my GPS but I've improvised. I also love the rip cloth material, it repels water and dirt on light days. I bought a rain fly for it just in case of downpours.
Date published: 2013-10-19
Rated4out of5byfromGreat PackI bought this pack because I run a summer camp and I spend a lot of time outdoors, so I need to stay hydrated but also need some essentials with me like basic first aid supplies, a binder full of lists and other things that I need to keep track of my kids. I love this pack because it contains a 3L hydration pack which is more than enough for me to spend outside all day in the hot NY summer. The pack is comfortable to wear, even with the weight of the 3L of H2O and my additional supplies, especially if you use the chest strap and waist strap. Most of the time the chest strap is enough. The pack has a good amount of space for day trips - it will easily hold a spare change of clothes in the large zip up pouch and an extra pair of shoes in the exterior, clip-up area. I actually used that space a lot for extra shoes this summer. The mid-size pouch is great for holding small supplies, like pocket knives and other items that you want to be handy, but also provides additional space below the small zip-ups. The straps have plenty of padding and the airflow pads on the back of the pack make it even more comfortable to wear. As this is my first hydration pack, I was relieved that the system was very user friendly. I love that the tube that attaches to the actual bladder easily ejects/disconnects from the bladder, making the bladder easy to fill. I only have two complaints about this pack. The first is the price. I think it should go for about fifteen to twenty dollars less than what I paid, but I guess the price is comparable to other packs. I just think hydration packs are generally overpriced. The only other complaint is that the clips on the front of the pack actually clip to the top/back of the pack, meaning that anytime I want to get into the two zipped compartments, I have to unclip the clip up pouch, which means my shoes fall out each time I want to get something out of my zipped pouches. Maybe this wouldn't be a problem if I was carrying something less bulky than shoes in the easy-to-access, clipped pouch, but eh, that's what I want it for. Still I would recommend this pack to others, despite my complaints.
Date published: 2013-09-08
Rated4out of5byfromA good buy for this price rangeWe bought this to do 1-3 hour long hikes on average as we have 2 boys ages 5 & 18 months. It's been in use twice & so far we are happy. I like that it has an extra flap on the outside to hold anything wet. The next step up in price seems to have too many pockets & nooks/crannies.
Date published: 2013-05-22
Rated5out of5byfromSolidI've been looking for an ideal daypack for a few years. I hike and backpack year-round in New England, but I've never had a daypack that suited all of my needs. After a few weeks with this pack, I think I've finally settled on a winner. This pack fits well. This pack holds just the right amount of gear and food for a full 12-hour day of hiking. This past weekend I used the pack while doing some volunteer trail work. In addition to my normal gear and food, I had all sorts of saws and tools attached to the pack, and it remained comfortable and well-balanced. I'm excited to use this pack this year and really put it through the paces. At this point, I'm loving the Alpine Explorer.
Date published: 2013-05-19
Rated4out of5byfromJust what I was looking for.I was worried it would be too short for my long torso(21" or so), it is fine. The removeable waist belt is a good idea for these type of packs. The big front flap pouch is a neccessity for me, and one of the reasons I bought this pack. Perfect spot for a handgun, jacket or extra food. The only thing I don't like is that the hydration hose could be a little longer, this may not be a problem for shorter torso people, and I can live with it the way it is.
Date published: 2013-04-10
Rated5out of5byfromExcellent day hiking packI bought this a few weeks after my wife bought a new Trinity pack, and absolutely love it! The pack has a ton of pockets and spaces to allow for all kinds of gear and accessories to be easily accessible along the trail. I was surprised at home much gear I could stuff into this pack, and cannot see myself running out of space when using for day hikes. All materials used are high quality, and the pack is made well. No stitching coming undone or frayed, and the zippers are nice and strong. I've brushed up against rocks, boulders, and bushes, and see no signs of wear or 'picks' in the fabric. My only complaint would be that towards the end of the day, I feel the water in the bladder tends to get a bit of a 'plasticky' taste....maybe its psycho-somatic, but my wife says the same thing happens with her Trinity pack too. All in all, this is a great pack and am glad I made this purchase.
Date published: 2013-02-26
Rated4out of5byfromDecent PackGot this pack a while back on sale for some back country snowboarding. Water capacity is great, easy to fill and the water reservoir doesn't move around due to the integrated hanger. I've only used it for snowboarding on top on my snowboard jacket, which is quite thick. Stays tight against the back and the extra straps ensure I can make it as small as possible when partially loaded. Even room for (small) snowshoes in the outer most pocket. The padding on the shoulders isn't very thick, and non-existent on the hip strap. Probably wouldn't be using this for long hikes. Cons, the place where the shoulder straps meet the belt strap ripped on the first backcountry trip I did. Still secure, but I'm going to have to sew on something to make sure it doesn't part further. This may have been due to me wearing it over my snowboard jacket. Worth noting though. Bought on sale it isn't a bad pack. If hiking was my goal I would invest in something better though.
Date published: 2013-02-17
Rated4out of5byfromregarding the waistbelt...I write this to clarify/dispute another reviewer's negative comments. I own both this pack and the fourteener. They are both very good packs- but suit somewhat different needs. The waist belt on this pack is indeed minimalist- but it can be removed. (This is nice for travel- and I keep it off unless I have substantial weight in the pack.) The fourteener has a larger, padded belt- but it cannot be removed or tied out-of-the-way. If you are carrying substantial weight, this is a nice feature. HOWEVER, as the harnesses of these packs are not adjustable, you need to be sure that the Fourteener fits well or that belt is a detriment! I've had both packs up- well, fourteeners! They both do fine, and their capacity is similar. In all honesty, my biggest gripe is that the hose is designed to only fit on the right shoulder strap...a pretty minor inconvenience, eh?
Date published: 2013-01-13

Ask a question and have it answered by REI product experts and fellow outdoor enthusiasts. Need immediate assistance? Use Live Help.

Loading Questions & Answers...

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

FREE SHIPPING With $50 minimum purchase

MEMBERS, EARN A $20 BONUS CARD! When you spend $100 April 14-29. Single-use bonus card redeemable May 2-12. 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
© 2014 Recreational Equipment, Inc. All rights reserved. REI, the REI Tree and Mountain design, Novara, and
REI Adventures are trademarks of Recreational Equipment, Inc.

Find REI on: FacebookTwitterYouTubeFlickrMobile site