NONOO 355ml leak-proof Double Walled_Thermal Mug comes in three_lovely colours._The inner layer is made of 316 stainless steel and the outer layer is made of 304 stainless steel which is antibacterial and hygienic material. Our mugs also come with an BPA-free lid. NONOO stainless steel water bottles are easy to use and they are resistant to rust and corrosion._
