Tailwind Soft Flask 500ml Size:500ml (17oz) Rapid Starting Blocks (2-580) and

Rapid Starting Blocks (2-580) and Jet Junior Starting Blocks (2-572)

IP54 rating for sweat

This breathable material allows for increased airflow

Strap closure to lock in wriggly fee

Tailwind Soft Flask 500ml Size:500ml (17oz) Rapid Starting Blocks (2-580) andLightweight 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