22 oz. stainless steel vacuum insulated tumbler with copper lining and slider lid. Don't be fooled by cheaper imitations. Copper liners help retain temperatures by up to 2 degrees more per hour! Double-wall vacuum insulation keeps drinks hot or cold for up to 36 hours. 18/8 stainless steel, made with kitchen-grade stainless steel, so they're puncture and rust resistant. Sweat free design. Keeps hands and surfaces dry. Overall dimensions: 7.448" H x 3.39" Diameter (top), 2.85" Diameter (bottom). BPA free.