This insulated stainless steel mug has an inner wall made of 304 stainless steel and an outer wall made of 201 stainless steel. It has a double-wall vacuum structure, a rounded mouth, a sealed lid and an outer wall that is sprayed in various colors. It is available in four sizes: 350 ml, 500 ml, 750 ml and 1,000 ml. You can personalize the body of the bottle with a laser engraving, print or 3D print of your logo, making it an excellent choice for daily use or as a gift.