Designed for the minimalist runner, the SkyFlask Speed features an adjustable hand strap and innovative, padded thumb loop to hold the flask securely in either hand without gripping or squeezing. Topped with our SpeedFill cap for quick refills on the go.
Upgrade to the previous hydrapak ultra flask, quick snap top for easy refills, New comfort strap improves the game. It's predecessor only good as a vest bottle. Very slippery when wet, the new strap seems to solve this problem.