The flagship model of the Responsiv trail running pack line, the Responsiv 10L is the ultimate trail and ultra running vest. At 210 grams this trail running hydration pack is one of the lightest around and can carry what you need on all your outings. With the two included 600ml EazyFlasks, it makes hydration on the run even easier.
The laser cut fabric, micro adjustment ratchet system, and breathable mesh this trail running hydration pack knows no bounds in performance. Giving you the optimal weight to function balance for all your trail running needs.
The two lateral micro adjustment ratchets allow you to dial in the fit of your pack on the go. With a small twist they create a personalized fit like no other pack system. Whether you are jumping over boulders and need it snugger or powering up a climb and need a more relaxed fit it makes changes easier and faster.