1-year limited warranty Double-wall vacuum-insulated Stainless Steel The world’s first universal can cooler! Designed to insulate nearly all 12oz and 16oz cans and bottles (over 500+ drinks) Keeps contents cold for 12+ hours Keeps contents hot for 6+ hours Non-slip Silicone bottom Powder-coated styles (laser engraved only), Silicone rings, and straws are dishwasher safe. Glitter and graphic styles are hand wash only Cup holder compatible Patent pending Silicone lid locks cans & bottles in place