Klean Kanteen Wide Chug Cap (for TKWide drinking bottles)

The Klean Kanteen Wide Loop Chug Cap is a leak-proof cap for all Klean Kanteen TKWide bottles. The cap increases the thermal performance of the TKWide bottles because the cap is completely insulated. The Chug Cap is enhanced with a practical cap over the spout of the bottle. If you don't tighten this cap it won't be 100% leak-proof. If you do, however, you will be left with a completely leak-proof cap. The cap is also enhanced with a practical loop you can, while you drink, attach the cap to. The Cap is made from polypropylene, does not contain any toxins, is BPA free and enhanced with a TK Closure design. As such it will properly insulate the bottle keeping your beverages nice and cool or warm.