The new Flip Seal Sport Cap has been designed to make the use of your Classic and Kid Kanteen bottles – whether single-walled or vacuum insulated – even more versatile. The ergonomic drinking spout opens and closes with a simple push of the thumb and ensures a smooth flow - ideal for on the go. The multi-use cap fits narrow bottle openings and can be used with or without the integrated stainless steel straw. The practical rotating carrying handle makes it easy to take with you - perfect for adventure, sports or everyday life. Like all Klean Kanteen products, the Flip Seal Sport Cap is made from durable, safe materials. The removable silicone tip makes cleaning easy, while the closure reliably protects against splashes and is 100% leak-proof. Whether hot or cold drinks, the Flip Seal Sport Cap masters any challenge. Features: ergonomic drinking spout for even flow. Multi-use closure: usable with or without a straw. Suitable for Classic, Classic Insulated and Kid Kanteen (Single Wall & Insulated). Rotating carrying handle for comfortable carrying. Removable silicone tip for easy cleaning. Dishwasher safe and easy to clean. Suitable for hot and cold drinks. Telescopic straw with 10 mm diameter. 100% leak. safe and splash protected Features: Material: 18/8 stainless steel, BPA-free polypropylene, silicone