Salomon S/Pro Alpha 90 W GW Ski Boots – Women’s 2025

Salomon made the wise decision to bring their narrow fit S/Pro Alpha to the ranks of intermediate and lighter skiers with the Salomon S/Pro Alpha 90 W GW Ski Boots and it was a great call. For skiers with narrower ankles and feet (or even average feet with narrow ankle structures), the S/Pro Alpha heat moldable last is MONEY, giving you the most precise fit you’ve ever experienced which will translate to better skiing right away.

Last: 98 mm
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Narrow last for slim to normal width feet with normal volume. Can be heat molded using the custom heat molding process to approximately 104mm in the forefoot.

Custom Shell HD
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Salomon's proven heat molding process makes boot fitting most feet quick and easy – the latest Custom Shell HD version is even quicker to mold than before. The thinner wall construction and new shell materials allow the foot to be closer to the shell and provide enhanced sensations, more power and direction energy transmission.

3D Instep Shell
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This new construction refers to the construction of the lower shell. The thinner plastic and strategic positioning of the forefoot buckle deliver less pressure on the top of your foot, make for easier step in and out, and ensures stronger heel lock without putting unnecessary pressure on your foot.

Flex

Flex Adjuster
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The Flex Adjuster allows you to boost or smooth your flex.

Flex: 100
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A medium flex for intermediate to advanced skiers.

Power Spine
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This metal plate links the cuff and the shell to provide strong back support, progressive rebound out of the turn, and powerful forward flex no matter the snow conditions.

Liner

My Custom Fit 3D Performance

Shell Materials & Design

Cuff
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Polyurethane with Custom Shell HD

Shell
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Polyurethane

Buckles

4 Micro-Adjustable Aluminum 3D Buckles
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Choose from 3 different positions of the instep buckle for optimum in-step comfort, full customization and personalized foot hold.

Power Strap

35 mm Velcro Strap

Sole

GripWalk ISO 23223 Outsoles
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Removable and interchangeable rockered soles designed to work with GripWalk binding systems for better grip and comfort while walking, standing, and hiking.

Additional Features

Tool Free Tooth Adjustment

Specs

• Ability Level:
  Intermediate-Advanced

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  Ability Level

  Intermediate-Advanced
  Whether you’re a progressing intermediate exploring new runs and terrain, or an accomplished rider seeking new thrills, the majority of skiers and snowboarders fall into this level. Intermediate to advanced skis and snowboards may be somewhat wider or stiffer than beginner-intermediate skis and snowboards, usually with a stronger wood core and sandwich sidewall construction. Intermediate to advanced boots and bindings range from softer flexing freestyle options to stiffer choices built for stability at speed.

• Ski Boot Flex:
  Medium

• Forefoot Width:
  98 mm

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  Forefoot Width

  98 mm
  Forefoot width, or last, is the reference width for this model based off shell size 26/26.5. Larger or smaller shell sizes will diverge from this reference width in increments of 2mm for every full size.

• Liner Type:
  Semi-Custom

• Flex Index:
  90

• Boot Sole Type:
  GripWalk (ISO 23223)

• Includes Tech Fittings:
  No

• BOA®:
  No

• Number of Buckles:
  4

• Series:
  S/Pro Alpha

• Warranty:
  2 Years

Other Notes

Salomon products can only be shipped within the United States and Canada