Basule Stainless Steel Tumbler (20 Oz.) | Double-Walled, Vacuum-Insulated Portable Beverage Container | Preserves Beverages at Desired Temperatures | Durable and Spill-Proof Versatile vacuum-insulated stainless steel tumbler maintains desired temperatures of your beverages BPA-free lid prevents unfortunate spills while you're on the go Portable beverage container with double-walled construction and sturdy design gives you enduring quality The unique design also reduces pesky build up of condensation Neatly and firmly fits into most vehicle cup holders