Material: fiberglass-reinforced nylon, metal Release Rating: 12 Boot Compatibility: Tech (ISO 9523) Brake Width: 80mm, 90mm, 100mm, 110mm, 120mm Brakes Included: yes Designed to offer good elastic travel for reliable release while minimizing weight penalty, the Atomic Backland Summit 12 BR Binding is a great choice for hard-charging backcountry skiers. These bindings bring back the reliable Backland Tech toe and pairs it with a Summit heel that better supports the natural flex of the ski for a more precise feel on the snow.