This is a golf training aid, the Golf Bra, from Touya Shoten (10YASHOW10). The size is XL. This training aid was devised by professional coach Morimori Hiroshi, who coaches top professionals, and aims for a swing where the upper body and arms are synchronized. There is some fraying of the threads, but it does not affect use. Please refrain from purchasing if you are concerned about this. I have used it a few times, but I no longer use it, so I would be happy if someone could use it. Thank you.