Stay hydrated even when on the go using this 20 Oz. Vacuum Insulated Stainless Steel Tumbler. It is designed witha stainless steel outside walls and a transparent Tritan Plastic slider lid that prevents splashing. This tumbler can store up to 591ml of your favorite beverage. It features a vacuum insulation that can keep the temperature of your drink hotter or colder for a longer period of time. Neer worry about storing it because if you remove the lid, these tumblers are stackable. Customize it with an imprint of your company name and logo! Only hand-washing is available for this product. Not microwave or freezer safe. Call and place your orders now!