FIREKI 16 oz. Tumbler (Stainless Steel) Double-wall vacuum insulated stainless steel keeps drinks hot or cold for hours 18/8 stainless steel strong stainless steel construction - puncture-proof, durable and easy to clean Great for Coffee or Iced-Tea Relax poolside with an ice cold margarita or handcrafted cocktail in your hand Fits most cupholders, comes with shatter-resistant lid. Does not come with splash-proof sliding lid (sold separately) Pro-Grade 18/8 Stainless Steel construction Double-Wall Vacuum Insulation Easy to clean functional wide mouth design Shatterproof dishwasher safe lid Fits cupholders