The 40 oz Urban Peak Apex Ridge Vacuum Travel Mug features: A copper lined, vacuum-insulated liner maintains optimal 12x drinking temperatures. Dual walled Stainless Steel construction, lead-free vacuum seal, sturdy Stainless Steel handle, features a push-on, AS plastic flip top with Tritan snap locking closure lid and straw hole, includes one clear Tritan straw, powder-coated finish with a Stainless Steel top rim, sweat-free design.