NOT 15oz and not dishwasher safe
These mugs are actually 11oz, which is frustrating as I bought them specifically because I wanted to buy 15oz mugs. They are also not dishwasher safe. They were a gift for a friend. As it did not say hand wash on the packaging he put them in the dishwasher and the Gs washed off. They still function as mugs, but they were not what I intended at all.