Powerskin ST is a highly performing racing swimsuit made of X-Raptor, a very light knitted fabric, specially treated toobtain an extra smooth outer surface. Thanks to the thinness and higher content of Lycra (29%). Powerskin STensures outstanding comfort and dries very quickly. X-Raptor fabric also guarantees excellent durability in chlorinatedwater and protection against ultra violet rays (50+ UPF).