Pure Stainless Steel. Leak Proof: 100% Leak proof, So it is the best option to carry anywhere. Specially for offices, hiking, picnics, travelling, etc. Dishwasher Safe: The bottle is dishwasher safe and can be stored in the freezer as well. Suitable Lifestyle:A well shaped and designed shiny silver bottle will reflect your modern lifestyle and attitude. Carry everywhere and keep yourself hydrated every time. Easy to clean and Durable: Due to wide mouth it is easily cleaned and durable.