The Nordica Sportmachine 3 75 Ski Boot is built to give you the essentials you need so you can head straight to the mountain this season. Essentials like a TriForce Infrared PU shell that’s supportive and strong, but also fully customizable so you can work with your bootfitter to get exactly the space and shape you need. Combined with the Comfort Fit Liner on the inside the result is a boot that is sure to feel better than anything you’ve ever tried before. But the essentials don’t stop there. It’s essential you stay warm on the mountain, so Nordica packed some Primaloft® insulation into the boot to help keep your toes toasty when the winter winds blow.