Callaway white cap. The inside is mesh, so it should be less likely to get stuffy. Size is free. The size is adjustable, so it can be used by both men and women. There is a slight stain on the left side of the cap's visor. I think it's only noticeable if you look closely, but please refrain from purchasing if you are looking for perfection. Thank you for looking. #callaway #golf #golfcap #whitecap