Made from high quality stainless steel, this Klean Kanteen bottle is BPA Free, leak resistant, does not retain or leach flavours and is recyclable! To add to this versatility, this bottle comes with double-wall vacuum insulation - Climate Lock - keeping your drinks hot for up to 20 hours and cool for up to 50 hours! AND features the leakproof loop cap. Key Features 18/8 Stainless Steel construction. Climate Lock double-wall vacuum insulation will keep drinks hot for 20 hours and iced for 50 hours. Klean Coat powder coat finish is 4X more durable than our previous finish and formulated for human and environmental health (Brushed Stainless has no coating). Electropolished interior, a safe & non-toxic process, and rounded corners make it easy to clean. Includes the leak proof Loop Cap. Compatible with all Classic Caps, including the Sport Cap 3.0 & plastic-free Bamboo Cap. Hand washing is recommended for all Insulated products.