KOR Delta represents the art of high-style, high-performance hydration with its striking, yet simple design and ergonomics. You can"t help but hydrate with and be inspired by Delta everywhere you go. The reduced thickness of the walls in turn reduces size, weight and environmental impact. Made from BPA-free Eastman Tritan copolyester, this health-safe vessel is durable and beautifully clear. The KOR ONE features a hinged No-worry Cap that swivels open with the press of a button and a twist of the wrist, staying out of your way while you drink. When closed, the Cap completely protects the spout from dirt and germs. KOR designed its threadless Perfect Spout to provide maximum ease of drinking -- it feels great on your lips and is large enough for chugging and ice cubes yet small enough to minimize splashes. Plus, the Delta"s Spout can be removed entirely, revealing a much larger opening for easier cleaning and filling. The KOR Delta"s ergonomic design is a joy to hold, and its built-in handle and protected base make it easy to grab or store. The vessel includes a set of two waterproof, disc-shaped KOR Stones, which can be placed inside the cap of your vessel with a message to inspire you with each sip. Finally, as with all KOR hydration vessels, one percent of all KOR Delta sales go toward the support of important water initiatives through KOR"s "Thirst for Giving" program. Beautifully designed, healthy, and sustainable -- the KOR Delta.