Trueware Copper Fusion Insulated bottle is designed to keep water for long hours. It is Double wall polyurethane insulated copper body inside and outside Stainless steel make it an elegant bottle. Storing water in a copper vessel creates a natural purification process. It can kill all the micro-organisms moulds fungi algae and bacteria present in the water that could be harmful to the body. Helps the digestive system perform better. Aids weight loss. Helps heal wounds faster. Slows down ageing. Helps maintain heart health and beats hypertension. Mitigates the risk of cancer. Protects you from infections. Regulates the working of the thyroid gland. Beats arthritis and inflamed joints. Boosts skin health and melanin production. Beats anemia. Hygenic flip- top lid which is convenient to use with single hand. All over sealed body no point of any leakage or dripping while travelling or so.It has inner insulated copper body which makes it unbreakable. BPA free & FDA Approved plastic used.