Ultralight and more slimmed down than ever, the Duro/Dyna Handheld is Osprey’s most minimalist solution for days running the road or trail. Designed to keep the included 360-mL soft flask effortlessly in-hand, no matter your stride, this running hydration solution also packs a small mesh zippered and shove-it pocket for a few extra essentials on your journey. Made with 100% recycled materials.