These rugged boots were designed for mountaineering, hiking, backpacking, work and various other outdoor activities. Worn on one adventure in which they served their purpose wonderfully. Still in very good condition. - High quality leather for durability - Excellent water repellency - Vibram outsole for superior traction - SBR Aircushion midsole to absorb shock and add comfort - 3D Flex ankle hinge system designed to increase agility - Compatible with New-matic (semiautomatic) crampons