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  • SensiFit system is designed for a contoured, comfortable fit that's snug and close to the body
  • Designed so you can reach everything you need while on the go; essential hydration is easily accessible at the front
  • 2 front soft hydration pockets; 1 chest zip pocket; 2 side zip pockets; 1 back kangaroo pocket; 1 chest stretch pocket; 1 back main compartment; 2 front stretch pockets
  • Elastic power-mesh materials are lightweight and completely chafe-free for comfort while running or skiing
  • Includes an 8 fl. oz. (250ml) soft flask for hydration
  • Includes a whistle and reflective hits
  • Breathable, moisture-wicking fabrics allow you to stay comfortable during even your longest trail days


View all Salomon Running Hydration Vests and Backpacks

REI membership


Best Use Trail Running
Frame Type Frameless
BPA Free Yes
Gear Capacity (L) 5
Gear Capacity (cu. in.) 305
Reservoir Capacity (fl. oz) 8
Number of Exterior Pockets 10
Material(s) Mesh
Dimensions 38 x 18 inches
Weight 6.7 ounces
Gender Unisex
Rated 5 out of 5 by from Really the Best I've Found Well this is just excellent. A little background on my type of use: I do lots of ultramarathons, up to 100 miles in distance (but am considering Badwater), and am pretty competitive. I say this because I hate reading a review and getting to the end and the reviewer is like, "I use this for four mile obstacle course races." Which is fine, just irrelevant to what I'm looking for. I have extensively used the Nathan VaporAir, the Salomon 12 set, and the older Salomon 10 set(?), or the slightly smaller version of the 12 set, whichever that is. I've also tried hydration belts and handhelds. The VaporAir was my favorite until I found this and moved away from having a full hydration bladder, which I have found with experience is heavy and unnecessary unless you're going out solo for long periods of time. Or maybe something like Badwater or Hardrock. For most ultras, like Western States, Vermont, Wasatch, or Leadville, a full hydration bladder is overkill in my opinion. So I like this one for a lot of reasons: It holds a surprising amount, plenty of nutrition, a mobile phone, two flasks of liquid that are super easy to fill at aid stations, etc, and how well it fits and how minimal it is. I love having nothing in back except a windbreaker or something, makes it easier to sit back against things. I hated that my previous packs had of all the zipper handles bouncing around, the front straps having extra material hanging, the stretchy cords on the back bouncing (which I never used out of fear of whatever jacket I had strapped to the back falling off unknowingly), and the unnecessary adjustment straps everywhere. I was just comparing to the Nathan VaporAir, which I love and own, and couldn't help but notice how busy the VaporAir is. There are a bunch of straps and zipper ends bouncing around, plus the front straps with the extra attachment points and all the extra material, not to mention the hydration tube. If this is something that bothers you, do a side-by-side comparison and see what I mean. The 5 Set Ultra is hyper minimal in back and has only two small cords in front to attach it together. The VaporAir looks like something you would wear if you were going to go get lost in the woods for a few days, which is tremendous overkill for long runs or ultramarathons where aid stations are fewer than 15 miles apart. This pack does away with all that. There are two super minimal straps on front and those are the only adjustment point. It fits closely, no sloshing of a hydration reservoir, and just a couple very small and super minimal straps on front to cinch it down. I legitimately feel like I'm not wearing it. I use the main back compartment for a windbreaker and light long sleeve shirt if necessary. The rear middle compartment is also pretty cool to stash a headlamp after dawn. I compared to the 8 Set, but that model just makes some of the pockets larger, which I didn't need. Otherwise the 8 Set is identical, and only slightly heavier. The only problem I had was, before I really learned how to adjust the front straps (they're a little unusual), when I would drink half my water, the bottles would start bouncing a bit. This caused some bruising on the bottom of my ribs from the small bouncing over 20 miles or so. I since got comfortable with adjusting the front straps and as long as it's adjusted so everything stays close to you, it works great. This is what I will be using in ultras from now on and I'll save my Nathan so long solo runs in the mountains where there is the chance I could get lost or stuck for an indeterminate amount of time.
Date published: 2017-05-15
Rated 5 out of 5 by from Good race ready vest you'll be surprised how light and flexible it is. It fits well, but you'll want it to be snug/ tight. The fit is nice, it rides without chaffing me. The soft flasks didn't poke my ribs. Plenty of space for gels, tabs, phones, etc. Looks like the back has small cords for trecking poles that no one has mentioned... (that I can recall) I found the side zipper hard to access while running, opening it was easy, closing it without pulling the whole vest to the left was difficult for me. On a hot day, I got about 10 miles without restocking water with the built in flasks. Cooler days, I could see getting 12-13. I'll experiment with adding a flask to stretch longer distance between supplying. I think it's possible. I'm used to running with a side pouch so I wasn't used to the insulation of the vest. But it breathes well.
Date published: 2017-06-07
Rated 5 out of 5 by from Must have Great purchase. I am 5'6. 135. 34 d. Originally purchased a medium. Thinking this would be a good fit. Returned for a small. Perks - the water does not jiggle when you run. 30 oz is perfect for 10 miles - 15. Many pockets that are reachable. Cons -the kneck line sits higher then usual on the kneck. There is no chaffing though. I am very pleased.
Date published: 2017-04-26
Rated 5 out of 5 by from Lightweight and easy to run with A great option for a water pack that doesn't feel like too much added weight. Plenty of pockets to boot.
Date published: 2017-04-24
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Are you going to get the 8L version of this bag ?

Asked by: D Johnson
Yes, we do sell the 8 liter version of this vest:
Answered by: REIservice
Date published: 2017-02-28

What size is most appropriate for a 40 inch (male) chest

Asked by: AndyHKC
Based on your chest measurement we suggest size medium.
Answered by: REIservice
Date published: 2017-03-29

Is this vest compatible with a hydration bladder? If so what size?

Asked by: Mango
This vest is not compatible with a hydration reservoir.
Answered by: REIservice
Date published: 2017-03-09

Are the soft flasks include (2x500ml)? It seems like the 8oz one was an artifact from the s-labs hydration kit (handheld), which is a separate product.

Asked by: Adam984
The vest includes two 500 ml. volume soft flasks.
Answered by: REIservice
Date published: 2017-02-18

Does this really only include the one 250ml soft flask? Salomon sells them with the 2x 500mL included.

Asked by: Adam984
This vest comes with two flasks that are 500 ml each. Thank you for bringing this information to our attention. We will update the product listing on as soon as possible.
Answered by: REIservice
Date published: 2017-05-04
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