US Outdoor Store
US Outdoor Store

Nordica Speedmachine 90 Ski Boot

SKU: 050H4601
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Nordica Speedmachine 90 Ski Boot


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Nordica has a solid track record for creating ski boots that are in an elite category of their own - and the Speedmachine 90 Ski Boot is certainly no exception to the bunch. With fully customizable Infrared Tri-Force shell and 3D liner design, the Speedmachine provides ample comfort and ridiculous power to the mountain. Response and precision are in full display through the Speedmachine 90's, and with these on your feet you'll have no problem bringing your skiing to the next level.


  • Strap: 35mm
  • Buckle: 4 Micro Alu
  • Cuff: Bimat PU
  • Canting: Double
  • Shell: Bimat PU, Easy-Entry Soft Flap, Weathershield
  • Liner: Precision Fit Primaloft
  • Soles: 5355 PU
  • Size Range: 24.0 - 31.0
  • Footprint: Precision Fit Primaloft




Most ski boots share a common construction—a durable outer shell made of hard plastic for stability and support and an inner liner for cushioning and comfort.

Most boots also feature a similar entry and front-overlap shell design with adjustable buckles to dial in your fit. (There are, however, a few alternative designs like rear-entry boots and the three-piece model originally popularized by the Raichle Flexon with its iconic ribbed tongue.
Kids’ boots sometimes feature rear-entry design for convenience, while three-piece models have experienced somewhat of a resurrection, especially in Full Tilt ’s lineup.)

Liner technology has evolved as boot technology and fit has improved. An entry-level liner will provide traditional fit and comfort for your feet and will compress or “pack out” over time, leaving more room in your boot. This is fine to the extent that it provides a more custom fit, but if it
becomes too packed out, you may lose performance.

Boots may also feature thermoformable liners which take advantage of your own body heat to mold quickly to your foot and offer a more precise fit. Some boot models feature custom moldable liners as well, which are heated using an external source before being fitted to your
feet. This can be done at home, but the best results are typically achieved with a qualified boot fitter.


A boot’s flex affects how efficiently it transfers power from you to your ski, so manufacturers rate ski boots according to a flex index. Stiffer boots transfer power more efficiently to your skis and rank higher on the flex index while softer boots aren’t as precise and rank lower.

Note: While the flex index is a general guideline, indices may vary between manufacturers. We recommend coming to U.S. Outdoor or calling us to talk to our qualified boot fitters to determine what flex is best for you.


Downhill Ski Boots are measured using Mondo Point sizing (typically known simply as Mondo sizing), which refers to the length of the inside of the boot’s shell (from heel to toe) in centimeters. The following chart provides a rough conversion to US street shoe sizing.
Nordica Speedmachine 90 Ski Boot Colors Available:


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