PREMIUM QUALITY - Made of BPA-free plastic and stainless steel.Highest quality 304 food stainless steel is used in cup’s inside and outside,which give good insulation performance and stability of practicality.
VACUUM INSULATION TECHNOLOGY - The cup uses double-wall vacuum stainless steel technology and electroplating process. It will retain hot 180°F at 12 hrs.; cold retention: 36°F at 12 hrs.
LEAK-PROOF DESIGN:The mouth of the cup is made of food-grade silica gel ring with the annular sealing mode, which can maintain the stable sealing effect.