Klean Kanteen Double Wall Vacuum Insulated Stainless Steel Growler with Leak Proof Stainless Steel Swing Lok Cap - 32oz Double Wall Vacuum Insulation, Keeps Cold up to 30 Hours, Keeps Iced up to 80 Hours Food Grade 18/8 Stainless Steel Construction Comes with Stainless Steel Swing Lok Cap Large 1.75 inch (44 millimeter) opening fits ice, easy to fill and pour; Compatible with all Klean Kanteen Classic caps Backed by the Klean Kanteen Strong as Steel Guarantee