The calf of the Brogini Derbyshire country boots are crafted from a soft and flexible synthetic leather, which needs minimal aftercare and provides a water resistant barrier, while the foot is made from a natural nubuck leather. The Derbyshire boots are fully waterproof up to the middle of the calf thanks to a specially engineered waterproof membrane and waterproof insole. They have been thoroughly tested to ensure your feet stay dry even in the wettest weather.