K2 FL3X Diverge SC Alpine Touring Ski Boots 2025

Product Details

Fit

Last: 102mm– A wide last for wider and high volume feet

Flex

Flex: 130– A very stiff flex designed for expert or heavier skiers.

Liner

Intuition Pro Tour Wrap– Slip-on the Intuition Pro Tour Wrap and get ready to motor on up the skin track. Crafted out of Intuition® Foam, and featuring a tour notch and lace-up system, the Intuition Pro Tour Wrap offers the added comfort and performance your boot is missing.

Shell Materials

Fully Heat Moldable– Both the shell and cuff are heat moldable for a truly custom fit.

Pebax Tongue– Lightweight, eco-friendly material used in the cuff of select boot models for energetic and consistent flex across a wide range of temperatures.

Shell– Thermoplastic Urethane (TPU)

Cuff– Thermoplastic Urethane (TPU)

Diverge Shell– The Diverge Tour Shell offers a smooth stride and articulated purchase in any situation. Walk farther and more comfortably than ever before. Featuring a higher back cuff and lightweight Grilamid™ plastic, this construction will take you anywhere

Ski/Walk Mode

Walk Wedge

Walk Mode– Flip the lever up to ascend with ease. And when it’s time to send it, flip the lever down, lock the cuff in place, and push into the fluid, progressive flex you’ve come to expect from FL3X. Works great for aprés bar sessions too.

Buckles

3 Light Alloy

Power Strap

Cam Booster Strap– Booster Straps provide maximum ski boot performance, increased control and shin protecting shock-absorption.

Sole

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

Additional Features

Integrated Tech Fittings– Tech fittings in the toe and heel are fully integrated into the shell injection, allowing for compatibility with both tech and DIN bindings.

Specs

• Ability Level: Advanced-Expert More

  Ability Level

  
  
  Advanced-ExpertWhether you charge the steepest lines, hit the biggest jumps in the park or carve with race-like precision, advanced to expert level skis, snowboards, boots and bindings are for the more aggressive rider. In skis and snowboards, you´ll often find layers of metal, carbon or other stringers for rigidity and power, while advanced to expert level boots and bindings are usually on the stiffer side of the spectrum for rebound and precision steering.
  
  
  
• Includes Tech Fittings: Yes
• Touring UsedFor: Burly
• Ski Boot Flex: Stiff
  
• Forefoot Width: 102 mm More

  Forefoot Width

  
  102 mmForefoot 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: 130
• BOA®: No
• Number of Buckles: 3
• Boot Sole Type: GripWalk (ISO 23223), Tech
• Series: FL3X
• Warranty: 1 Year