These Kart leather boots feel just as good as they look. They are fully waterproof and breathable thanks to the Hipora membrane, and with the laces and the Velcro closure you can make them fit perfectly around your feet and ankles. The leather they are made of is PU coated cow hide, which is reinforced at the heels and tips. Extra assets: the ankle protection and Retro Reflex details to increase your visibility. Features PU coated cow leather Waterproof and breathable Hipora membrane Laces and Velcro closure Ankle protection and reinforcement at the heel and tip Retro Reflex details Technologies waterproof and breathable membrane.