Tailwind Soft Flask 500ml Balega Superior Grip and Stability for

Superior Grip and Stability for Every Terrain

fits well in most running shoes

Whether you're chasing a personal best or competing on the world stage

From playgrounds to uneven trails

Tailwind Soft Flask 500ml Balega Superior Grip and Stability forLightweight and compact, the Hydrapak's UltraFlasks collapse as you drink. This eliminates sloshing and allows you to pack the empty flask tightly to stow on the go. Perfect for integrating into hydration vests, belts, or handheld systems. Suited for a full range of year round activities, and backed by Hydrapak's leakproof warranty. 500ml 17oz Features: 500ml 28mm wide opening High glow bite valve auto seals after each sip and includes a twish locking