Material is 100% silicone - Silicone is a very elastic and longlife material. After use, it is recommended to rinse under running clean water and allow to dry thoroughly.
This swimming cap does not allow water into the cap so it protects your hair from being wet and especially from chlorine or salt water.
Approved and certified by the International Swimming Federation FINA (Fédération Internationale de Natation). It meets all international standards and allows start at prestigious races.