These soft flasks are designed to carry enough liquid to get you through long runs. They're foldable and compress as you drink, reducing water movement.

- Silica Gel Valve
The silica gel valve allows air to escape, compressing the flask as you drink to eliminate water bouncing inside. The valve is leakproof until you bite it then offers a high flow rate, even when it's resting on your teeth.

- Carrying capacity of each flask : 500 ml / 17 oz of liquid.

- Vest-pack fit provides bounce-free stability and a flexible flask shoulder to prevent chafing.

- Leakproof high-flow bite valve auto-seals after each sip, eliminating annoying drips.

- Shrinks as you drink to minimize water bounce.

- Made of ultra-durable, abrasion resistant TPU.

- Flask color may change slightly over time due to water PH levels.

- Sold as a 2-pack.