Klean Kanteen Coffee Set Wide Mouth Insulated Bottle w/ 2 Caps (Loop Cap and Cafe Cap), Stainless Steel, 16 Ounce Wide 2.125" (54mm) opening fits ice, easy to fill and pour Compatible with most backcountry water filters Doesn't retain or impart flavors. Slim design fits most cup holders. Double-wall vacuum-insulated construction keeps contents hot 10 hours, or iced 30 hours Includes Klean Kanteen Wide Mouth Insulated Stainless Steel Bottle with 2 Leakproof Caps (Loop Cap and Cafe Cap 2.0) - 16 Ounce Brushed Stainless