This is a work-style cap, which is rare for NIKE. It's one size, but adjustable, so I think it can be used by both men and women. I think I used it, but the shape didn't suit me, and it's been sleeping for over 10 years. I washed it before listing it. This is a rare item that is no longer sold. Thank you for your consideration. #NIKE #NIKEGOLF #GolfCap #CAP #WorkCap #GolfCap