Last: 100 mm – Designed to fit average width and average volume feet.

Bootfitter's Notes – The new Lange RX lasts are noticeably more relaxed in width and instep height than in years past - if you've had trouble fitting in a Lange performance boot before, you may find the new boots much more comfortable.

Flex: 90 – A medium stiff women's flex for all-mountain versatility.

Dual 3D Performance Liner – 80% customizable thermo liner with medium density foam and a precise, soft tension fit.

Thinsulate™ Insulation – Thinsulate™ is a lightweight synthetic insulation that delivers increased warmth in damp and cold conditions for all-day comfort.

Shell – Polyurethane

Cuff – Polyurethane

Dual Core Technology – A new "Power Injection" method 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.

Forward Lean – 12˚

Ramp – 4˚

Canting – +/- 1°

4 Micro-Adjust Aluminum Buckles

2 x 6 Tooth Upper Ladders with 3 Position Options

40mm Velcro Strap

ISO 5355 Alpine Soles

Bi-Material Pads – Replaceable bi-material toe and heels offer increased traction and comfort when walking and can be updated when worn for longer boot life.