This is a kids' swim cap purchased from Breeze. It has sun protection at the back of the neck. Size: 52-56 Color: Navy Used a few times for short periods in an indoor pool when my child was 3-4 years old. I think it's still usable, but please refrain from purchasing if you are concerned, as it has been worn by a child. It will be shipped via Yu-packet Post or Post Mini (anonymous shipping).