"It's an Ocean Thing" mug with the Ocean Traveler. These glass mugs are made from Recycled Glass. They look great with a "cup of Joe" in them. Nice heavy, quality and sharp looking glass. It is seamless and weighs 1 lb. Start your day off with a soothing sea turtle and daydream of the ocean waves. Holds 16 oz of hot or cold fluids. Dishwasher safe too.