For a refined fit, its shell and liner can readily be customized. Primaloft insulation keeps feet warm and dry and a dual entry instep makes it remarkably easy to get in and out of the boot. And to create a more neutral stance that improves balance and reduces fatigue, the boot’s cuff can be fine-tuned to cradle the contours of your leg. With an emphasis on progression, the Sportmachine 75W makes skiing easier—and even more comfortable.