With optimized grip and a high-flow valve, the SOFT FLASK 250ml/8oz will help keep you hydrated on all your shorter runs, so you can explore, train and race in optimum conditions. Shrinking as you drink to limit water bounce, the flask lets you know exactly how much you have left. The soft, flexible flask shapes to fit your pocket for extra comfort and shrinks as you drink to minimize water bounce. The intuitive high-flow valve makes drinking easier, so you can stay hydrated however fast youre running or tired you are. With extra grip on the cap, the flask is easy to use even when your hands are cold or sweaty. High-flow valve 100% BPA & PVC free 28mm opening TPU & RF welded seams for superior durability, abrasion resistant and elasticity Wide working temperature range (frozen - max temp 60°C) Volume: 0.25 L Weight: 24 g