La Sportiva SoftFlask 500

+Ideal size for hydration vest, belt or pack pockets. Soft material conforms to any pocket for a comfortable carrying experience
+Flexible design shrinks as you drink reducing movement and easily packs away when empty
+Leak proof threaded design. 42 mm opening sized for easy filling and ice with a self-sealing bite valve
+100% BPA & PVC free, wide working temperature range (can be frozen - max temp 60° C / 140° F)