Fit Easy Entry Shell Design – Located on the throat of the boot, 4 channels are cut into the plastic to reduce the thickness of the material and thus provide smoother entry and better wrapping of the foot. Last dependent on boot size – 25.5 = 100 mm forefoot width / 26.5 = 102 mm forefoot width / 27.5 = 104 mm forefoot width Last: C 2100 cc – The benchmark in both ease of entry and riding precision, this is the most widely appreciated HEAD last around the world. Flex Flex: 80 – A soft to medium flex for beginner through intermediate skiers. Liner HeatFit liner – A multi-component liner with moldable inserts in the liner and tongue. 5 minutes of heating is all that's required to make the lining adapt to the perfectly precise and comfortable fit. Sport Frame Footbed Shell Materials & Design SL material Tri-injected Energy Frame – A high performance, multi-density shell that optimizes easy entry, foot wrapping, comfort and energy transmission Stance Double Canting – Two different levels of canting adjust to properly align the body and boot. Buckles 4 Micro-adjustable Alloy Buckles 1 Supermacro Ratchet – An adjustable, ratcheted toothplate provides 28 mm of calf adjustment. Power Strap 40 mm velcro strap Sole SoftWalk Heel – A Head patented cushion positioned in the heel for shock absorption and smoother heel striker, without compromising the performance.