Capacity:450ml or 15oz,Size:65mmx240mm,Weight:222g or 0.49lb Material: made of double-wall stainless steel, inner layer 316 (austenitic stainless steel) or outer layer 304 stainless steel, corrosion-resistant, the surface of the cup body is sprayed with plastic material, plastic composition: BPA-free food gradePP, stainless steel cup can be used Drinks stay hot and cold for up to 12 hours,Gloss coated brushed stainless steel outside,double wall insulation makes this sports or camping water bottle sweat-free, keep the temperature in the bottle for a long time Our vacuum flask liner adopts the stretching process, the liner has no joints, and the inner wall is smooth. The general vacuum flask liner adopts the water swelling process, and the inner wall has obvious seams, which is not conducive to maintainingthe temperature of the liquid in the cup for a long time. (Please see the display picture) Safety: The lid of the cup adopts a silicone sealing ring, which is safe and leak-proof sealing, which can resist high temperature and prevent aging. The cup comes with a safety lock to avoid accidentally opening the lid It is very convenient to carry in daily life, such as running, driving, reading, and walking the doggym, yoga or outdoors hiking, biking, kayaking