Built for runners who want a leak-proof soft flask for vest pockets, the QuickStart Soft Flask 14oz features a push-pull locking bite valve that shuts off when you're not drinking — ideal for transport, training, or stashing in a pack between sips. Fits perfectly in any Nathan hydration pack or vest flask pocket.

The 42mm opening makes filling and cleaning easy, and the soft, conforming material carries comfortably in any pocket.

🇨🇦 Free standard shipping over $150 (after discounts, before shipping + taxes). All items ship only within Canada.

Eligible items can be returned within 14 days of delivery for a refund. Before 30 days, customers are eligible for an exchange (in-store only) or store credit (in-store and online). We are not able to offer exchanges online. We recommend returning your order and placing a new order online. Sale items under 50% off are only eligible for store credit upon return. Please ensure that your item is eligible for return before purchasing if you are hesitant.

For eligibility and more information, please see our full return/exchange policy.