【DOUBLE WALL VACUUM INSULATION】We offer 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.
【SPLASH PROOF LID & EASY CLEAN】Each insulated coffee cup is equipped with a straw-friendly lid, which provides additional insulation and splash-proof (non-leak-proof) protection.