K2 Cortex 130 Zonal BOA® Men's Ski Boots

"The dual-BOA powerhouse for expert-level performance." The Cortex 130 Zonal BOA® sets new standards in fit and control. Thanks to the innovative Zonal BOA® Fit System — with two dials for the shell and cuff — it provides a precise, even fit from the very first run. These boots are designed for the most demanding skiers who want to dominate the terrain: freeride, big-mountain skiing, fast carving or descents in changing snow conditions.

Why choose them?

The K2 Cortex 130 Zonal BOA® boots are designed to deliver maximum performance. The innovative Zonal BOA® Fit System allows the shell and cuff fit to be adjusted separately, eliminating pressure points and improving responsiveness in every turn. The low-volume foot profile (MultiFIT Last 96–98 mm) guarantees a sporty, precise fit while providing forefoot comfort throughout the entire day on the slopes. Thanks to FastFIT Instep, putting the boots on is quick and hassle-free.

You can individually adjust the precision and ergonomics of your descent – Dual Cuff Alignment allows the cuff to be set at different angles, while the Adjustable Rear Cuff Spoiler enables additional customization. The Energy Bolt Spine enhances stability by reinforcing the rear of the shell and ensuring ideal energy transfer. Comfort inside the boot is enhanced by the EliteFit Pro Liner with full lacing, while the Ski Edge Sensitivity Shims allow you to fine-tune ski response according to your preferences.

Walking on snow is no challenge either, thanks to the GripWalk Outsoles (ISO 23223) — replaceable, lugged outsoles that increase traction. The durable Cam Booster Power Strap completes the design by stabilizing the upper part of the boot. With a 130 flex, these boots meet the demands of Advanced–Expert level skiers, offering incredible precision, power and control even during aggressive descents.

Technical specifications – K2 Cortex 130 Zonal BOA®

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  Flex: 130 – very stiff, ideal for advanced and expert skiers

  
  


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  Last (width): 96–98 mm – Low-Volume / MultiFIT fit

  
  


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  Closure: Zonal BOA® Fit System (two BOA® dials: shell and cuff)

  
  


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  Interior (liner): EliteFit Pro with full lacing and adjustable tongue + Ski Edge Sensitivity Shims

  
  


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  Cuff adjustment: Dual Cuff Alignment (± 2°) + Adjustable Rear Cuff Spoiler

  
  


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  Reinforcement: Energy Bolt Spine (rear stabilizer)

  
  


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  Outsole: GripWalk ISO 23223 — replaceable and lugged for improved traction

  
  


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  Power strap: Cam Booster Power Strap — increases closure and control

  
  


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  Easy entry: FastFIT Instep — flexible TPU panel in the instep area

  
  


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  Dial BOA®: H+i1 – micro-adjustment, quick release and a durable mechanism

  
  


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  Material: Shell and cuff made of TPU (thermoplastic polyurethane) 

Ideal for…

– Advanced–Expert level skiers who expect unrivalled precision, power and control.
– Those skiing demanding terrain: freeride, big-mountain and technical descents.
– BOA® technology enthusiasts who value comfort, easy entry and an individualized fit.

The K2 Cortex 130 Zonal BOA® is the essence of power, comfort and innovation – a model for those seeking the ultimate package: top-level performance, a personalized fit and all-day comfort.