Speedo Fastskin 3 Blue Swimming CapThe FS3 Competition Swim Cap is the world's first cap featuring the IQ Fit Profile and designed using accurate head mapping data; creating optimum comfort, outstanding hydrodynamic performance, improved fit and ease of use. FINA approved. Reduces drag by 5. 7% if used in conjunction with Fastskin Goggles Solid coloured cap with back center graphic. Developed as part of the world's first Racing System, engineering cap, goggles and suit to work in