The Stainless Steel Thermos Mug is made of 304 food-grade stainless steel. Lead-free and long-lasting. Rust-resistant, easy-to-clean, and unbreakable. Because of the spill-resistant design, the cup can be dropped or tipped over with little to no spillage. The lid can be machine washed, but the body must be hand washed. The advanced technology prevents heat transfer to the outer wall and protects your hands from beverage temperature. The temperature of our hands does not affect that of the drinks.
The tumbler with a splash-proof lid has double-wall vacuum insulation for maximum insulation capability. The vacuum insulation with copper lining provides the good ability of insulation, bringing your drinkings maximum insulation! This Stainless Steel Thermos Mug lid designs a weather-proof clear lid to keep an eye on the status of your remaining drink, a splash-proof lid with a rubber ring keeps your beverage hot up to 6 hours or cold to 12 hours. Carry around your beverages whether out at the mall, soccer game, or park. Stay refreshed and hydrated no matter what adventure life takes you on.