1.DOUBLE WALL VACUUM INSULATIONWe this 20oz insulated tumbler with Double wall vacuum insulating body and purely stretch-formed liner 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. 2.ELEGANT & SUPERIOR FINISHING INSIDE AND OUTOur vacuum travel mug is made of the highest quality premium 304 18/8 food grade stainless steel, BPA , ier than plastic cup. Long-lasting powder coating keep its stay colorful finish and look more elegant and noble.Super robust powder coated colorful finish superior to other designs, protecting against dents and scratches.you will feel smooth to the touch under a sweat- design. 3.SPLASH PROOF LID & EASY CLEANEach insulated coffee cup is equipped with a straw-friendly lid, which provides additional insulation and splash-proof (non-leak-proof) protection. Its smooth surface will ensure that your cup remains pure and electrical The polished interior does not produce any smell, giving you a clean and hygienic drinking experience. It is recommended to wash your hands. 4.APPLICABLE TO VARIOUS OCCASIONSThis 20oz stainless steel tumbler with lid are suitable for drinking tea, coffee, and water and so on. great for outdoor adventure, road trips, sports event, 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.