Our tumblers are BPA Free, and have a durable coat of color that won't fade, peel, or crack and also provide additional grip to the Tumbler exterior. They are all made of high-quality stainless steel.

The double wall vacuum insulation in our 30oz insulated tumbler is designed to provide exceptional heat preservation. We have conducted rigorous testing on each tumbler to ensure a high vacuum degree, allowing your drinks to stay cold or hot for extended periods of time.

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.