Compatible with crampons, these transformer-style boots can be worn on muddy mountainous terrain where you don\'t want to lose your footing.The boot offers a closer more technical fit, supported by the AutoFit collar and Flex Point Zone to provide high levels of comfort. This eliminates the stomping action often felt from walking in more flat-footed boots.Underfoot performance has been improved with the new Pentax Precision XT sole and the lug pattern is deeper and more aggressive with a dedicated flat climbing zone around the toe area. The Manta\'s mantra is to keep enabling people to climb mountains, and the waterproof and breathable Gore-Tex lining does just that. 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)