The gul fastnet boot has been made from a combination of the highest quality material. Premium leather upper with breathable mesh panels, waterproof and fully breathable these sailing boots have been designed to keep your feet extra toasty. Featuring a aquatherm waterproof membrane technology to keep feet dry and warm whilst wicking away perspiration. Flexible force lasting (strobel) construction cordura /premium leather upper corrosive-resistant eyelets (non magnetic) removable, cushioned eva foot bed gul marine sole with slip- resistant, non-marking siped rubber gcx3: waterproof membrane technology to keep feet dry and warm whilst wicking away perspiration. Colour: blue