We offer this 30oz insulated tumbler with a Double wall vacuum insulating body to ensure that it is incredibly good at heat preservation. Every tumbler was tested to guarantee its high vacuum degree to keep your drinks cold and hot for several hours.

This 30oz stainless steel tumbler with a lid are suitable for drinking tea, coffee, water, and so on. great for outdoor adventure, road trips, and sports events, also the perfect travel cup to bring coffee from home to work or fill a tumbler of drink before you go to bed to drink through the night.

The travel tumbler has a completely closed clear lid and the silicone gasket on the lid ensures that the tumbler is 100% leak-proof and dust-proof.

The ergonomic design allows one hand to use double-layer insulated water cups. The proper diameter allows it to be carried in a variety of ways, such as a standard bicycle bottle holder/cage, an adult backpack with external pockets, or a car cup holder.

Made from 18/8 304 food grade stainless steel, which is durable, electro-polished on the inside to ensure your cups remain rust-free, and a colored powder-coated finish on the outside makes it super easy-grip.