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  • Included raincover stows in its own zip pocket
  • U-shaped panel with 2 zipper sliders offers quick access to gear and total access when fully open
  • Padded, mesh-covered straps and back are cool and comfortable
  • Internal HDPE framesheet adds structure and helps shield your back from protruding gear
  • Side mesh pocket with elastic closure offers quick access
  • Outer pocket can hold a phone or sunglasses
  • Top has a zip pocket on the underside for your keys and valuables
  • Special fasteners on the back hold pole tips down low and pole shafts up high
  • Pack has an inner sleeve for a hydration reservoir (reservoir sold separately)
  • Waistbelt can be removed; it can also be replaced by an REI Trail 2 Waistpack (sold separately) to provide added storage


View all REI Co-op Daypacks

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Best Use Hiking
Bag Style Backpack
Frame Type Internal Frame
Gear Capacity (L) 25 liters
Gear Capacity (cu. in.) 1,525 cubic inches
Weight 1 lb. 9 oz.
Weight - Metric 0.71 kilogram
Fits Torso 17 - 19 inches
Fits Waist/Hips 28 - 44 inches
Material(s) Nylon
Frame Material HDPE framesheet
Pack Access Panel
Number of Exterior Pockets 5 + main compartment
Raincover Included Yes
Dimensions 20 x 13 x 8.875 inches
Gender Men's
Rated 4 out of 5 by from Trail 25 Evaluation 5 Months In After 5 months of weekly use by a day hiker, this pack looks and feels like new. It easily holds a rain jacket and light weight insulated shell, headlight, compass, emergency equipment and my lunch with room for a wool hat and gloves now that the cold weather has arrived. There are convenient pockets for phone or keys, a setup for a water reservoir and it comes with a rain cover. It is light weight and comfortable to wear and Ialso has a loop at the top to carry the pack when not wearing it. I'm sure there are more expensive and feature filled day packs out there, but for value to price it's hard to see how the Trail 25 can be beat.
Date published: 2016-01-09
Rated 4 out of 5 by from Very good backpack I love how this backpack is laid out. Perfect amount of exterior and interior pockets to organize your gear (bladder, snacks, sunglasses, keys, trash, etc). The pack is light and great for day hikes. Due to the layout of the pack it's very versatile, I've used it as carry on luggage for short trips as well as my day pack when travelling to theme parks (carrying my go-pro, sunglasses, water, sunblock, jackets, etc). The only Con is it was a bit difficult for me to find the right shoulder adjustment location so the pack and waistband sat right. That is my reason for giving this pack 4 stars instead of 5. But overall very happy with my purchase.
Date published: 2016-01-09
Rated 4 out of 5 by from Trail 25 Day pack My uses: Good size for cycling to tennis with racquets & shoes. Good size for day hikes / commuting/ etc. Has a compartment for a Hydration bag (not included) After a couple of weeks of use: Padding down the back is quite thin. Not a problem but I have only used it cycling so far. Spend another $10-20, and some of the other brands have better back support. I'd prefer a fold-over top, instead of the zipper. Comes unzipped if I pick it up from the front. I doubt it's very waterproof. Suprise... The little pocket in the bottom contains a rain pack, so that addresses the waterproofing comment. Overall, pretty good value for the price. Probably the lowest price in that size.
Date published: 2016-04-17
Rated 5 out of 5 by from Great pack! I bought this pack because I wanted something lightweight, durable, and features that suited my needs (specifically the exterior features). It has surpassed my expectations. I have the black version that has plenty of exterior loops which is a must for me. I use them regularly and they are of good quality. The zipper is used often and has been through a lot since I've purchased it and has help up very well. I am hard on my gear, so it takes a beating. It's lightweight and the interior and exterior storage space is perfect. It's also pretty darn comfortable for a pack this lightweight and for the amount of weight I put into it. Love this bag and might get another one to make a go-bag. Good stuff.
Date published: 2015-11-29
Rated 5 out of 5 by from Not too big, Not too small, Just Right ! Needed a new day pack after retiring my 1972 REI day pack that did a kazillion day hikes. This REI pack hits a sweet spot of just the right size. Very well made. Nice side pockets that hold the water bottles. Nice small top pocket for glasses and phone.Lots of clipping for outside items. A little back padding and suspension to keep items away from the old back. Sternum clip keeps the straps in place. Carried all the essential day hike items without being over stuffed. Rides like a dream. Makes Goldilocks a happy camper.
Date published: 2015-12-08
Rated 4 out of 5 by from Great Pack, but the zippers I love this pack. It has great volume for a day/overnight trip, and is flexible enough to serve as a work/computer backpack. I took this pack with me to the Himalayias for a week and it performed wonderfully both as a carryon and day trekking pack. I now use it daily to carry my computer and other work things. The straps are comfortable, and there are more than enough ways to lash things to the outside. My one gripe is with the zipper to the main compartment. The quality of the zipper does not instill long term confidence, and the zipper seam on the inside of the pack has begun to unravel a bit at one of the curves of the zipper causing it to snag sometimes. Overall I love the balance and features of this pack enough to overlook the zipper and I would recommend this pack to my friends.
Date published: 2016-01-15
Rated 2 out of 5 by from Great design. Poor hardware. I have this bag in all black. The design seems well thought out. The bag looks great, too. I'm giving this bag 2 stars for one simple reason. The quality of zipper chosen is absolutely horrible. Why is this such a big deal, you ask? Because the zipper is, BY FAR, the most used function of this bag.... of any bag! It's a cheap zipper -- in terms of quality, it feels like it came off a Slurpee promotional fanny pack. The zipper sticks, and I have zero confidence in it's ability to hold up to any sort of daily abuse. So, yes, the bag is pretty great in terms of design -- but this horrible zipper is a deal breaker, and I can only give it 2 stars because of that simple (yet, very important) oversight in quality.
Date published: 2015-04-30
Rated 4 out of 5 by from A really simple, yet versatile pack. I've been looking for a really simple pack that I can use for day hiking, urban cycling, and daily commuting. This pack's size and features are nice. For a day trip in the Rockies, I stuffed a 3L water bladder, a bunch of energy bars, a bluetooth speaker, a jacket, a pair of shoes, 1st aid, a pencil-bag-turned catch-all, a shemagh, and some EDC items. 3L was definitely too much water, still,the pack rode oh so well. The shoulder straps are perfect for the weight, the back is padded and firm, and the hip belt kept the load stable when running up and down the mountain. I ended up returning this pack for a larger one, intended for camping but still suitable for day hiking. Also, the top pockets are a little too small.
Date published: 2016-06-13
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Would a 2L water bladder be the biggest for practical use on this or would a 3L fit? The Platypus Big Zip LP Reservoir 3L for example.

Asked by: Porter
I just tried the 3L Crux Camelbak that was on sale this Memorial Day weekend. I have not put water in it yet (in case I have to return it). It fits when empty, but at least when empty is so tall the hanging hook does nothing. Is the hook efficacious once the 3L bladder has water in it?
Answered by: TheGreatOutdoors
Date published: 2017-05-30

Is the torso measurement on your website correct? 19" max seems short for men. In fact all but two of the specs (4" difference in waist measurement and 0.75" in pack width) are exactly the same for the men's and women's Trail 25.

Asked by: c-m-d
5'9" male here. Waist strap comes around my the top of my navel, not down around hips. Doesn't feel like my big pack, with the weight being specifically put down on the hips. But there was ample room for adjustment, and it can be replaced with a little front-facing "fanny" pack thing. The sternum strap was comfortable and you can adjust the height so that it sits in the right position.
Answered by: Titanic
Date published: 2017-05-24

What size Nalgene water bottles will fit in the mesh pockets?

Asked by: northernson
​We recommend a 32 oz. bottle as the maximum size for the mesh side pockets.
Answered by: REIservice
Date published: 2017-05-30

Can this or another size be used as a personal item on an airplane? I know there are different rules per airline but is this a safe bet?

Asked by: aharling12
Typical carry on dimensions equal 45 liner inches (L + W + H). This 25 liter pack will meet that requirement. We recommend contacting your specific airline for additional details.
Answered by: REIservice
Date published: 2017-03-03

Will a 15 inch iMac laptop fit/

Asked by: dph1
Although a 15" MacBook will fit in this bag, there is no designated laptop sleeve.
Answered by: REIservice
Date published: 2017-05-17

There are straps that run vertically to the pack How far do they go Are they cinch straps to compress the pack?

Asked by: Neeman
The Trail 25 has cinch straps on the top and bottom to add accessories to the pack.
Answered by: REIservice
Date published: 2017-04-20

Can I replace the belt with a padded waist belt? If so, which belts will work with the pack?

Asked by: knottyna
​We do not sell a replacement padded hipbelt that would work on the Trail 25 pack.
Answered by: REIservice
Date published: 2017-03-03

Can I use this for school?

Asked by: pdxmaddog
​This pack can be used for school.
Answered by: REIservice
Date published: 2017-05-27
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