Osprey Hydraulics 500ml Soft Flask

Extend your range on the trail with this remarkably lightweight, durable and packable soft flask. Toting 500ml of mission-critical hydration, it's lighter and more convenient than conventional water bottles and works seamlessely with the Duro| Dyna trail running series vestpacks or handhelds. Sold separately so you can add-on or stock up your aid station. BPA-free.