Stainless Vacuum Bottle Type M350 Sand For school excursions, cherry blossom viewing, and picnics in the park. New colors added to the popular bottle. A new color has been added to the stainless steel vacuum bottle series, which excels in heat retention and cold insulation by blocking the effects of outside air by creating a vacuum inside. This time, the colors are close to natural tones and are calming, making them easy to use daily and appealing to women. The wide mouth makes it easy to add ice and enjoy the aroma of your drinks. The bottle is designed with a constriction at the top, making it easy to open and close the lid. We have utilized the know-how we have cultivated in developing camping gear to create a bottle that is also useful in urban life. The stainless steel double-wall construction creates a vacuum inside, blocking the effects of outside air and providing excellent heat retention and cold insulation. Manufacturer Part Number TW-351-SN Size 155mm × Φ74mm Weight Bottle body 166g, Cap 37g Specifications Heat retention: 68 degrees Celsius or higher (6 hours), Cold insulation: 8 degrees Celsius or lower (6 hours) Materials Bottle body: Stainless steel (acrylic resin coating on the outside), Cap: Polypropylene, Packing: Silicone rubber