A Prime Line® Exclusive** 21 oz. (621 mL) double wall vacuum insulated bottle with powder-coated finish. Made of durable 304 Stainless Steel. Features Polypropylene Plastic lid with hook that screws on and off for easy drinking. Designed for use with both hot and cold beverages: Keeps contents hot 12 hours and cold 30 hours. Wide top opening for adding ice cubes. Hand-wash only. Do not microwave, do not place in freezer. Logo restrictions may apply to this product. **CO2 Laser engraving is not available on Silver color** *24-hour rush service only applies to catalog quantities up to 288 units.