The durable upper is made with tough leather with a waterproof coating to help keep your feet dry and warm. The padded, high-top collar adds comfort around your ankle and locking in the warmth and adding stability. The visible Air units in the heel and forefoot cushion every step. The rubber outsole features an aggressive lug pattern for added traction, durability and a rugged look. The perfect blend of form and function after 20 years, the timeless design is rugged enough for the mountains, yet practical enough for the streets.