Key Features: 100% STAINLESS STEEL: RejuvaSip® tumblers are made from high-quality 18/8 stainless steel, which is BPA-free and non-toxic. It is entirely safe for hot and cold beverages. LEAK-RESISTANT AND DURABLE: The tumbler has a leak-resistant lid with a straw hole, making it easy to drink without spilling. The tumbler is safe for kids and adults. DOUBLE-WALLED VACUUM INSULATI... https://www.bigassstore.shop/products/rejuvasip-stainless-steel-double-wall-40-oz-tumbler-with-handle-lid-plastic-and-metal-straws