Say goodbye to cold feet. The women's Pure Pro Heat blends on-snow performance with a heated liner and a 100mm last for a comfort focused fit. The liner combines merino wool insulation and integrated heating technology with three temperature settings that are adjustable with the touch of a button from your phone, so your feet are always warm. The boot's Sensor Blade shell delivers award-winning power and precision in a customizable, boot-fitter friendly design. Adjustable flex lets you dial in your own flex needs.