Klean Kanteen's large 64 oz. Insulated TKWide Bottle with Loop Cap was created with versatility, portability and performance in mind to create the best water bottle, coffee mug, sport bottle and insulated cup all in one package. This bottle comes with the vacuum insulated Wide Loop Cap which creates a full stainless steel interior, increases thermal performance, features TK Closure internal thread design and has an easy-carry swivel loop. Easily transition between other TKWide caps including the leak proof Cafe Cap or the Straw Cap which makes hydration easy. TK Closure internal thread design increases thermal performance and compatible with TKWide caps. Climate Lock keeps contents hot up to 38 hours or iced up to 135 hours. Chip-resistant Klean Coat powder coat finish is 4x more durable and formulated for human and environmental health (Brushed Stainless has no coating). 18/8 food grade stainless steel. Won't retain or impart flavors. Includes leak proof vacuum insulated Wide Loop Cap with Swing Away Loop. Smooth, rounded lip for comfortable drinking and easy cleaning.