... Caps made by 80% nylon, 20% spandex, Excellent recreational or fitness swimming cap, Elastic band at base for secure comfortable fit ... Caps made by 80% nylon, 20% spandex, Excellent recreational or fitness swimming cap, Elastic band at base for secure comfortable fit ... different colors Product specification Material80% nylon, 20% spandex UPF50+ OR polyester/lycraSizeProduct NW: 45g(±1g) Size:H:17.5*D ...