K2 partnered with Thermic to develop a low profile, out-of-the-way heated liner that will make the days of cold feet and numb toes a thing of the past. The heated version of the Spyne 120 comes in a 100 mm last, best suiting medium-sized feet. This boot offers a mid-stiff flex of 120, ideal for those who want just a touch of give when engaging the turn. Both the shell and liner are heat moldable for the perfect fit and a pre-formed “bump” on the instep area prevents unwanted pinching when flexing like Arnold Schwarzenegger—hasta la vista, painful pressure points.