C-Skins Swim 3mm GBS Cap Swim Research from C-Skins has been developed for both recreational and competition swimmers. This range has been designed by swimmers and built by C-Skins using over 40 years of experience ensure you get the best products available.A good neoprene swim hat can be one of the most important accessories for both togs and wetsuit swimmers. These hats covers your head and ears with 3mm neoprene that doesn't ride up or slide off. A handy  adjuster give you the perfect fit.  Protecting your ears not only keeps you warmer but helps to protect you from damaging your ears from prolonged exposure to cold water.  Features include: 100% Thermotech Glideskin neoprene - speed and performance on the outside, combined with a flexible quick dry thermal lining. Strata neoprene - Embossed channels in the neoprene on the top of the hood to improve the flow of water. Performance driven minimal panel design - strategically positioned seams reduce drag and improve comfort. Chin adjustment - compact adjusted allows for size adjustment without adding bulk.