The Nordica Speedmachine Heat 85 is a fantastic option for advanced intermediate to expert level ladies with a medium forefoot and medium calf volume. Tri Fit Technology allows the rider to fully customize their own hardware placement, the Women's Precision Fit Heat Liner and the shell and cuff after the Infrared Technology heat molding process. The Women's Bluetooth Precision Fit Heat Liner delivers maximum warmth and comfort with integrated battery operated, 3 heat setting Bluetooth liner that can be controlled from your phone. Three plastics are strategically place with Tri Force Construction, delivering a lightweight feel without sacrificing the performance of the boot. Keep your feet warm and toasty on the coldest mountain days with the Nordica Speedmachine Heat 85.