The Promachine 115w features a higher cuff for increased support and leverage, while the lower shell maintains a light-weight, low-volume 98mm last, making it energetic and reactive and allowing it to perform well in all conditions. Its shell utilizes softer plastic over the instep to better wrap the foot and stiffer plastic along the spine of the shell to create lateral stability and fast energy transfer. And its Primaloft-insulated liner increases comfort and warmth. If needed, easily customize your fit using infrared heating, making for an even more precise fit and, therefore, a more responsive boot. Wear the Promachine 115w and enjoy the performance you demand with the comfort you desire.