Designed for comfort, built to take you from sunup to sundown. With a balanced handle that feels just right in your hand—the Arch Loop Cap features smooth, rounded edges for an easy, comfortable carry. 100% leakproof, BPA-free, and dishwasher safe, this cap is made to keep up with your every move. Clip it, carry it, or toss it in your bag worry-free. Compatible with all Classic Klean Kanteen bottles, because versatility is kind of our thing. NOTE: Compatible with Classic narrow mouth bottles only (with internal threads).