- Exo-Core Technology: Combines two thicknesses of silicone for maximum performance - Internal dimpling and stabilizing ribs prevent movement and wrinkling and keeps the cap in place - Hydrodynamic 3D shape - Works in conjunction with our performance Compression Cap to improve the hydrodynamic shape of the head - Performance cut - Reusable hard case packaging - FINA approved - Latex-free - Pair with the Compression Cap to improve the hydrodynamic shape of the head and hair. - "The swim cap is very important to a swimmer?s performance," said Coach Bob Bowman. - "we´ve created a cap that´s going to provide maximum control of the hair with a minimum of wrinkles for the most streamlined movement through the water."