This stainless steel thermos bottle features a large capacity of 860ml, making it perfect for daily use. The inner liner is made of 316 stainless steel material, which is safe and healthy, with insulation and cold locking. The built-in sealing silicone ring ensures a leak-proof design. The thermos bottle is heat resistant and can keep drinks hot or cold for 6-12 hours. It comes with a straw and is available in various colors.