Stainless Steel Vacuum Bottle Type T350 Sand New colors are now available for the T350, which is easy to grip and open/close. This is a new color for the stainless steel vacuum bottle type T, featuring an easy-to-grip, drum (tsuzumi) shape achieved through advanced metalworking technology. The 350ml size makes it easy to slip into your bag. The double-layered stainless steel construction creates a vacuum inside, achieving unprecedented heat and cold retention. Furthermore, advanced metalworking technology creates the easy-to-grip drum shape. It's finished in a compact size that's easy to carry in your bag.