Speedo swim hats speedo fastskin swimming cap black the world’s first iqfit cap, engineered for hydrodynamic performance. Rise to the challenge wearing the fastskin swimming cap in black, the world’s first cap to feature iqfit technology. Based on accurate head-mapping data for optimum comfort and fit, the cap offers outstanding hydrodynamic performance. Use in conjunction with fastskin goggles to reduce drag by 5.7%. This product has been fully approved by world aquatics. Head-mapped. Race-approved. Built to go faster. Iqfit technology world aquatics approved 100% silicone reduces body drag 3.4% Chlorine protection 3 key features iqfit technology the fastskin cap is the world’s first to feature iqfit technology, developed using accurate head-mapping data. This means the cap conforms precisely to your head shape for a secure, comfortable fit. The result is a cap that stays put during every stroke without distraction or slippage. Hydrodynamic performance designed to reduce full body drag force by 3.4%, This cap is built for swimmers who demand every marginal gain. When paired with fastskin goggles, the combined drag reduction rises to 5.7%. The fit point marker makes aligning cap and goggles straightforward, so you hit the water in the optimal position every time. World aquatics approved the fastskin swimming cap carries full world aquatics approval, making it eligible for use at competitive pool events at every level. Constructed from 100% silicone, it also provides relia...