This 40oz Tumbler is crafted from 18/8 stainless steel, it features a nice powder-coated matte finish, color-matched plastic handle and straw, a press-in straw lid to prevent spills and a copper-lined and double-wall insulation for temperature retention. This travel mug keeps your drinks hot for up to 6 hours or cold for up to 16 hours and it is compatible with car and truck cup holders. This item is also BPA-free and FDA-certified.