1)Made of 3 mm thick neoprene, upper part made of smooth neoprene 2)water- and wind-repellent 3) reflex stripes and velcro Made of 3 mm thick neoprene, upper part made of smooth neoprene, water- and wind-repellent, slightly brushed inside, divisible zip at the back side with reflex stripes and velcro fastener. Sole opening for pedal hook and at the heel, lined edges. Sizes: MAKE AS REQUESTED