18/304 rust-free stainless steel construction with powder-coated matte finish. Wide-mouth lid is 100% BPA-fee Tritan™ plastic and the flexible silicone straw sleeve is food-grade. Double-wall insulated and copper-lined to keep bevarges hot up to 7 hours and cold for 12 hours. Condensation-free surface and fits perfectly in a car cup-holder. Tumbler comes with a metal straw, colour matched silicone straw sleeve and cleaning brush.
