Voit's Swimaster Silicone Swim Caps are made from 100% embossed silicone, ensuring superior waterproofing. They are also very easy to put on and take off, thanks to their comfortable fit and adaptable size. These caps are truly indispensable for achieving total hydrodynamics! 100% embossed silicone Comfortable fit Enhanced waterproofing Achieve complete hydrodynamics Ideal for both competitive and recreational swimming.