Why We Love It The Aid Station Soft Flask 500ml is designed with a wide mouth opening, offering mid-race convenience for endurance athletes who need reliable, efficient hydration on the move. Perfect for running, hiking, or racing, this wide mouth soft flask is lightweight, collapsible, and easy to fill with hydration powders, drink mix and ice, keeping you fuelled and refreshed wherever your adventure takes you. Talk Nerdy To Me Built from BPA-free, food-grade TPU, the Aid Station Wide Mouth Soft Flask 500ml offers durability and flexibility without adding unnecessary weight. The collapsible design shrinks as you drink to minimise bounce, while the wide mouth makes refilling and cleaning effortless. The high-flow bite valve ensures smooth hydration, helping you maintain pace without breaking stride. Fast Facts - 500ml capacity - Wide mouth cap design for easy filling - Collapsible design - Bite valve - BPA-free - Food-grade TPU construction - Dimensions: 260 mm x 80 mm / 10.2 in x 3.1 in - Weight: 46 g / 1.6 oz