A highly supportive ankle construction provides all the necessary support needed for rougher terrain. Speed lacing offers slick and quick fitting. And the rubber Pentax Precision XT outsole ensures maximum bite on the trails thanks to the ultra-aggressive tread pattern.Waterproof and breathable Gore-Tex LiningActiv Fit Technology - for enhanced comfortAutofit collarFlex Point ZoneDeep full rubber rand - protectionC2 crampon compatible - Grivel G12 or G14 with New-Matic bindings.Speed lacing systemFT last for improved sensitivityPentax Precision XT sole unitDeep lug pattern on outsoleWeight: 1640g (pair 42)