Oggi Lustre Ergo 5059.0 Double Wall Stainless Steel Bottle with Push Button Top, Stainless Double walled construction, ideal for cold and hot beverages Made of stainless steel: 0.5 l./17 oz. capacity Hand wash with mild non abrasive detergent Carry your favorite beverage to work, class, or a picnic. Double wall construction keeps your hot beverages hot and your cold beverages cold, longer