Tervis insulated drinkware delivers the ultimate combination of personality and performance for pure drinking enjoyment. This double-walled tumbler offers all the benefits of stainless steel and can be enjoyed with legendary and beloved exclusive Tervis. Tervis stainless steel tumblers feature double-wall vacuum insulation, reduce condensation and keep drinks hot for up to 8-hours or cold for up to 24-hours. Copper-lined 18/8-stainless steel construction is durable and material won't retain tastes or odors. Stainless steel tumblers feature a limited 5-year guarantee and are designed in Venice, FL. Includes leak resistant and easy-close hammer lid. For best results, hand wash with soap, water and a scratch-free sponge. Towel try immediately to help preserve decoration. Do not soak or use cleaning materials (bleach, chlorine, etc.) and do not put in dishwasher, freezer or microwave. Color: Silver.