Lock and Walk Brake: The multi functional Lock and Walk unit automatically locks the brakes and provides a 10 degrees climbing aid; Hollow Linkage 2 Heel: Improved step-in performance - 30 % less step-in force and easier entry. Also compatible with GripWalk boots; Ride and Hike Toe: Great Royal Family downhill performance and release function combined with pin-technology for strong uphill performance; Multinorme (Sole.ID): Height-adjustable gliding plate to be compatible with all boot soles on the market. Compatible with: Alpine (ISO 5355 A), Touring (ISO 9523) and GripWalk (ISO 23223 A) soles; GripWalk: The sole-binding system for better walking comfort and top skiing performance. GripWalk contains of a co-polymer sole with rocker profile; Gliding AFD: All Marker bindings are equipped with a moveable AFD (anti friction device) leading to a highly precise release almost entirely unhindered by dirt, snow and ice; Anti Ice Rail: Use the metal rail to scratch off ice and snow below your boot sole; Auto Quad Lock: Toe part locks itself at 4 different points automatically when stepping into the binding