K2 FL3X Revolve Pro Ski Boots 2025 – Used

If your skiing takes you from pow slashes to park crashes without missing a beat, check out the K2 FL3X Revolve Pro Ski Boots. Featuring a moderate 100 flex, a proven 3-piece design, and an Intuition Pro Wrap liner, these boots are essentially the same as the Wallisch Pro model without the GripWalk soles, Cam strap and splashy colorway.

Last: 99mm
–
A slightly narrower than average fit for most feet.

Flex

Flex: 100
–
A medium stiff flex for advanced skiers.

Liner

Intuition Pro Wrap Liner
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Slip into the Intuition Pro Wrap, and experience unmatched ankle retention and pressure-free performance. Crafted out of Intuition® Foam, the Intuition Pro Wrap offers the added comfort and performance your boot is missing.

Shell Materials & Design

Fully Heat Moldable
–
Both the boot's shell and cuff are capable of being heat molded to a variety of foot shapes for a truly custom fit.

Shell and Cuff
–
TPU (Thermoplastic Urethane)

Buckles

3 Revolve Alloy

Power Strap

35mm Velcro Strap

Sole

ISO 5355 Alpine Soles
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(Front is non-replaceable)

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:
  99 mm

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  Forefoot Width

  99 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:
  100

• Boot Sole Type:
  Alpine DIN (ISO 5355)

• Includes Tech Fittings:
  No

• BOA®:
  No

• Number of Buckles:
  3

• Series:
  FL3X

• Warranty:
  1 Year

Other Notes

K2 products can only be shipped within the United States and Canada