SIDI Performer Racing Boots 52445-102-50

performer gore comfortable, breathable and protective.zip elastic panel:- sidi has added a small elastic panel to aid in a smooth zipper operation as it allows a bit of movement via the elastic as the zipper passes over the rider's ankle ball.replaceable slider:- the slider is replaceable and available in full nylon, with ceramic or with aluminium inserts.top sole:- rubber top solegore-tex:- the gore-tex® membrane is at the heart of all products engineered with gore-tex® fabrics. it contains over 1.4 billion microscopic pores per square cm (9 billion pores per square inch). these pores are 20,000 times smaller than a water droplet, but 700 times larger than a water vapor molecule. water from the outside will never penetrate. yet perspiration can escape easily, so that less moisture is trapped in the insulation. the result: you stay warmer when it's cold and drier when you perspire.features and protections:- shaped and fixed shin plate with lower air channels- soft arch area- internal and external shaped ankle pads- calf area exhaust in soft polyurethane protected with mesh- smooth heel cup for more adherence with the motorbike.- shift pad