[Product Description] High quality stainless steel double vacuum structure, the outside of the cup body is made of food grade stainless steel outer material, without BPA, and the lid is made of ABS material to achieve thermal insulation effect.  Food grade stainless steel inner bladder, inner wall with heat insulation layer, vacuum temperature locking layer, enhance the effect of heat and cold.  Bottle cap straight drinking mouth and straw design, easy to drink, clean and hygienic;  Equipped with two straws of different shapes, the bottle cap is equipped with a vent valve to ensure air circulation and facilitate drinking;  Equipped with stainless steel, safe and non-toxic