20 oz Stainless Steel Tumbler: Made of 18/8 food-grade stainless steel for sustainable sipping, the tumbler is durable, rust-resistant and wear-resistant; The leak-proof lid uses BPA-free plastic and have a drinking hole, which is safety and easy for daily drinking
Double Wall Insulated Tumbler: The 20 oz tumbler features upgraded double wall vacuum insulation technology, ensures that beverages can be kept cold for up to 12 hours and hot for up to 6 hours; Excellent heat retention for extended drinking time
