The Whistler is a classic winter boot. They are made of strong, water-repellent leather and are lined with real lambskin. With long lacing, you can adjust the boot well to the foot. The non-slip PU outsole offers great traction and grip on most surfaces. Anatomically designed orthopedic footbeds provide support and comfort to your feet. The lightweight, flexible and highly sock absorbent soles are gentle on joints.