SPEEDO Fastskin3 Cap PRODUCT DETAILS: Visit the Fastskin3 Interactive Website to learn more. 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. Reduces drag by 5.7% if used in conjunction with Fastskin3 Goggles. Developed as part of the world's first Racing System, engineering cap, goggles and suit to work in harmony. The first true 3D cap created by Speedo Aqualab and based on accurate global head scanning data. Designed for real head and face contours. Improved drag reduction, comfort, and fit accuracy. Use the Fit Point Marker to easily align your cap and Fastskin3 goggles. Striking iconic design is cohesive across suit, cap and goggles, making a statement to your opponents. If you have long hair we recommend you wear the Fastskin3 Hair Management System under your cap.