This Mainstays 24 oz double-wall stainless steel bottle has 4 colors rich black/pearl blush/blue essence/arctic white available for your selection. It is made of 304 stainless steel 0.4mm/inner and 0.5mm/outer. The surface is finished with a matte powder coating. Double-wall vacuum insulation keeps drinks cold or hot. Double-wall sweat-free design prevents condensation. Lid: Top rack dishwasher safe.