Stay refreshed wherever you go with the leakproof chug style cap. Designed for convenience, the narrow chug spout offers controlled flow for quick hydration, while the wide mouth cap accommodates ice cubes to keep your drink cool. Compatible with all Wide Mouth bottles. Enjoy a convenient and controlled flow with the Narrow Chug drinking spout Compatible with all Wide Mouth bottles thanks to wide mouth bottle threading Leakproof when closed for mess-free hydration Easy to transport and comfortable to carry with the Flex Strap BPA-Free and dishwasher safe for added convenience