The Lange LX 90 Women's Ski Boot is a high-performance boot that is primed for resort ripping. With a flex of 90, you get just the right amount of stiffness to provide power and precision for your turns, but also the softness you need to keep you comfortable and out all day. With a last of 102- millimeters, the LX 90 is ideal for ladies with wider, high-volume feet. What makes this boot stand out from the rest is its Dual Core technology, which uses a "Power Injection" method that allows Lange to inject two different durometers of plastic simultaneously through 5 injection ports, with the two plastics being directed to specific parts of the boot. The harder plastic goes to the heel, spine and lower shell to retain stiffness, while the softer plastic goes to areas that wrap the foot and lower leg for comfort. A Dual performance 3D liner is 80% customizable thrermo liner made with a medium density foam, which provides for a precise and soft tension fit. A 40-millimeter power strap and 4 Aluminum buckles provide the perfect blend of adjustability and power so you can drive your skis to their fullest potential. For all-mountain domination, look to the Lange LX 90 Women's Ski Boot to deliver the performance you need.