The Procline Carbon boot from Arc'teryx is their first entry to the ski boot field. It is an innovative product, with excellent uphill attributes and serviceable downhill performance. Other boots perform better in pure ski touring and ski mountaineering situations, but the Procline is tuned for skiers that will tackle more technical climbing objectives in their ski boots.
Arc'teryx has issued a recall for their Procline boot line. Boots manufactured between Nov 2015 and March 2017 are thought to be affected. The recall pertains to a faulty axis pin, which may become dislodged, and could cause the wearer to lose control while skiing. If you own this boot, you can find more information about the recall here, including instructions to follow to have your boot repaired at no cost.