The Speedmachine 90 from Nordica is a perfect ski boot for the strong intermediate to advanced skier with a medium to narrow forefoot and leg shape. Nordica's new Infrared Shell Technology allows an Authorized Nordica Dealer to use a special infrared lamp and air pump to customize the shell for a truly dialed in fit. A Water Shield sits below the seam on the lower shell that prevents water from finding its way inside the boot to keep your feet dry on deep powder days. The 35mm Strap increases the amount of rebound and leverage you have to drive energy directly towards your skis. Primaloft Insulation in the Precision Fit Liner will keep you warm when the snow is flying, but the conditions are really good, and you can't stop skiing.