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. Works when drinking liquid or gels.

- Carrying capacity of each flask : 250 ml / 8.5 oz of liquid.

- Slides easily into short pockets, waist packs and belts.

- 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.

100% Thermoplastic Polyurethane

Wash with mild soap and water, max temp 60° C / 140° F

- Ethically produced in China.

- Made of BPA & PVC free TPU.

- Foldable and reusable.

- Free shipping.

- Free returns and exchanges within 14 days of original purchase. Items must be unworn, unwashed, and undamaged with original and detachable labels intact.

- Items may be exchanged for a different size or color of the same style.

Visit our Shipping & Return page for more info & FAQs.

All our products come with a 1 year manufacturing warranty from the date of purchase. This guarantee includes faults in the fabric, workmanship and other manufacturing related errors. The warranty does not cover defects caused by normal wear and tear. Our warranty covers products purchased through satisfyrunning.com and authorized retail partners. If you have a warranty claim, please contact us here.