Salomon Soft Flask 500ml Hydration Water Bottle - Lightweight Collapsible Running Flask for Hiking, Trail Running & Outdoor Adventures (Clear Blue)

With a wide 42 mm cap and high-flow valve, the Soft Flask 42 - 500 ml makes staying hydrated faster and easier, so you can focus on the trail ahead. Shrinking as you drink to limit water bounce, the flask lets you know exactly how much you have left. Compatible with all Salomon caps featuring a 42 mm opening.