Chumy Soft-Flask

Chumy's Soft Flask is built to carry the brand's Energy Gel-Mix without the sticky packaging waste of single-use gels. It's lightweight, fits into any jersey or running vest pocket, and shrinks down as you drink. Built-in scaling lines on the flask take the guesswork out of mixing, and a Hydrapak high-flow bite valve lets you drink one-handed on the move.