• 20 oz (600 mL) double-wall vacuum insulated bottle with Bamboo lid. • Features 201 Stainless Steel exterior and 304 Stainless Steel lining. • Screw on/off bamboo lid. • Hand-wash only. • Do not microwave. Do not place in freezer. • Vacuum insulation helps keep your beverages hot or cold longer than traditional insulation. • Designed for use with both hot and cold beverages. • Caution: Item may leak if tipped or held upside-down.