The Maars Bev Steel is a 12 oz double wall 18/8 stainless steel copper coated, vacuum insulated travel tumbler with a powder coated finish that protects against chips and scratches. Comes with a clear push-on lid and matching straw for easy drinking to prevent accidental spills. Insulated tumbler keeps your drinks chilled or warm for hours. The tropical palm leaf design will transport you to the beach.