With an eye on progression, the Sportmachine 90 places an emphasis on comfort and control. Its wider last and softer shell are especially forgiving and can accommodate high-volume feet. For a refined fit that enhances performance, the boot’s liner and shell can be fully customized. A dual entry instep makes it especially easy to get in and out of the Sportmachine. To provide a more neutral stance that improves balance and minimizes fatigue, its cuff can be adjusted to better cradle the contours of your calf. And for additional warmth, its liner sports Primaloft® insulation. Push your limits in comfort with the Sportmachine 90.