This thick silicone dome cap was designed using head mapping data; creating optimum comfort, outstanding hydrodynamic performance, improved fit and ease of use. Due to this advanced design there is an estimated 5 percent reduction in drag compared to other swim hats. Caps are available in size medium and large.
Most professional swimmers wear a latex, silicone or Lycra cap under this racing cap to achieve optimum performance although some donâ€™t.
Medium fastskin dome weigh 110 grams each and large fastskin dome weigh 130 grams each.