100% leak-proof water bottle, ideal for work and sports, easy to open and close with una One-hand operation Comfortable, wide spout for easy drinking Air valve to ensure a smooth flow of liquid Snap-on cap to protect the drink from dust and impurities Does not absorb odors, leaves drinks fresh and sparkling Suitable for drinks at temperatures from -10 to +96 C Has won 3 design awards and a Queen's Award Material: