The Stainless Steel Travel Mug is made from minimum 90% Recycled Stainless Steel, Post-consumer, 304 Grade. It is designed for 10 years use and is 100% recyclable. Keeps your drink hot for 6 hours. Easy one-hand opening, 360 Degree drinking and 100% BPA & melamine free. Dishwasher safe. 227ml/8oz.