This is a tennis game shirt, the model worn by Rafael Nadal. The size is indicated as Nike M, but it's a US size, so it's equivalent to a Japanese L. I purchased it from the store as a size L equivalent when it was new. You might not notice it from a distance, but upon closer inspection, there is some deterioration of the Nike logo. Otherwise, there are no visible stains or other issues. Please consider this a used item and understand the condition before purchasing. Gender: Men's