HydraPak SkyFlask 500ML Recovery The PES membrane is 100%

The PES membrane is 100% waterproof (40k)

Durable Construction: Made from ultra-durable

The foam is “unwrapped” in the heel for even better responsiveness

while the curved brim offers reliable sun protection without weighing you down

HydraPak SkyFlask 500ML Recovery The PES membrane is 100%Racing or training, take matters into your own hands. This minimalist soft flask handheld features an innovative thumb loop that allows you to hold the flask securely without wasting energy gripping or squeezing. Versatile and ambidextrous, it can be held in either hand and the soft, neoprene loop provides a comfortable and chafe free fit. The adjustable, sweatproof strap fits most hand sizes and snuggly stays in place with a Velcro style closure.