Flip Seal Sport Cap (Classic) lrg The Navy required them to

The Navy required them to be “non-powered

with a small spout

making it resistant to rips

providing both utility and back support

Magnetic bit holder

Flip Seal Sport Cap (Classic) lrg The Navy required them toThe 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. Compatible with Classic bottles only (with internal threads). 100% leakproof Easy open spout Ergonomic design with steady flow rate Can be used