Insulation performance: Triple insulation reduces condensation and keeps drinks hot up to 8 hours or cold up to 24 hours. Use caution with hot liquids Construction: Copper-lined 18/8 stainless steel construction is durable and resistant to taste or odor retention Care instructions: For best results, hand wash with soap, water, and scratch-free sponge Guarantee and origin: Stainless steel tumblers and bottles feature a limited 5-year guarantee, are made in China, and printed in Venice, FL Capacity: Holds 20 ounces of your favorite hot or cold beverage Style and color: Features a 20oz Legacy style with a stainless steel finish Uses: Suitable for travel, home, and dining occasions Material: Made of stainless steel and copper materials