30 oz Double Wall Stainless Steel Tumbler with Straw Lid

All of these tumblers are made of high-quality stainless steel. Powder coating technology makes it for a long time and to have a modern and stylish look. The mug has a narrower bottom to fit most standard cup holders. It is 2X heat and cold resistant compared to a normal tumbler. Using the double-wall vacuum insulation technology, we ensure to keeps hot drinks steaming and cold beverages icy for a long time. This Stainless-Steel Tumbler features double-wall vacuum insulation with a clear lid. It is made from 18/8-gauge stainless steel (18% chromium 8% nickel) - also known as Type 304 Food Grade which is food-grade stainless steel, safe to use, will not change the taste of the drink, rust, and scratch-resistant.