Classic Flip Seal Sport Cap

What is Classic Flip Seal Sport Cap? Classic Flip Seal Sport Cap is a compatible cap designed for select Klean Kanteen drinkware.

Best for: replacing a cap or adapting a bottle to a preferred drinking style.

The 100% leakproof Flip Seal Sport Cap comes with an ergonomic spout that opens and closes with just a flick of the thumb and can be used with or without the included stainless steel straw for maximum versatility so you can stay hydrated your way. Includes special telescoping straw to fit various size bottles. NOTE: Compatible with Classic narrow mouth bottles only (with internal threads). Recommended for kids ages 3+.