How to Choose a Running Hydration Vest

Take what you need for a long day on the trails with the 10-liter La Sportiva Ultra Trail hydration vest. Multiple storage options and an adjustable closure keep everything in place, mile after mile.
Earn 2x card rewards Instead of 5%, earn 10% in card rewards†on REI purchases—even sale items—with your REI Co-op® Mastercard® Sep 18–28. Terms apply. Learn more
Imported.
View all La Sportiva Running Hydration Vests| Best Use | Trail Running |
|---|---|
| Gear Capacity (L) | 10 liters |
| Gear Capacity (cu. in.) | 610 cubic inches |
| Reservoir Compatible | Yes |
| Reservoir Included | No |
| Bottle(s) Included | 2 bottles |
| Liquid Capacity (L) | 1 liters |
| Liquid Capacity (fl. oz.) | 33.8 fluid ounces |
| Number of Exterior Pockets | 8 + main compartment |
| Weight | S: 6.8 ounces M: 7 ounces L: 7.2 ounces |
| Material(s) | 80% polamide/20% elastane |
| Fits Chest | S: 33-36 inches M: 35.5-39 inches L: 38.5-42 inches |
| BPA Free | Yes |
| Dimensions | S: 13.5 x 15.5 x 0.5 inches M: 14.5 x 16 x 0.5 inches L: 15.5 x 16.5 x 0.5 inches |
| Gender | Unisex |
| Sustainability | From a Climate Label Certified brand |
Adding a review will require a valid email for verification
Comfortable for run. Bad quality in hydrapaks. One of them gets a leak after 10 uses.
My initial impression was great. This vest is very light and breathable, but the amount of stretch in the fabric is overkill for me and the associated bounce was a deal breaker. With the vest loaded up and straps cinched as tight as the go (which isn't very tight) and the stretch in the elastic part of the straps there was just too much bounce and causes the static end of the strap slips though the buckle adding to the poor fit. I tried a medium in store and it was too tight so I went with a large. After 3 uses and really trying to love it, I just can't make it work. Also of note, the pockets for the soft flasks are too deep and the elastic retainer straps for the top of the bottles doesn't keep the bottles up, adding to the bounce. It's probably a fine product for someone who can get a good fit with it, but it misses the mark for me and its going to be returned.
I love the distribution of the pockets. They're stretchy for easy access and it's very light. It's not bulky and doesn't take up much room when you want to transport it in a backpack. On the other hand, it bounces a bit when the softflasks are completely full. Try to wash it immediately, do NOT soak it because the black parts may stain the white ones.


Buy a lifetime $30 membership and make a $50 purchase by Nov 12, 2026.*
$15
10% Reward*
on this and every eligible full-price item*
+
$30
Bonus Card*
valid for 30 days after joining*
=
$45
Value