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K2 Cortex 120 Zonal BOA Men's Ski Boots combine a stiff flex with a narrow fit, providing precision and control during fast descents. The comfortable insole and ergonomic design ensure all-day comfort, while the BOA system makes it easy to quickly and securely adjust the fit of the boots.

Basic data

Brand K2
Country of origin of the brand USA
Sport Skiing
Gender Male
Season Autumn/Winter
Leading colour Green
Model/product code Cortex 120 Zonal Boa 10L2902.1.1
Purpose All mountain, Freeride
Code 2000176479

Product details

Level of sophistication Advanced
Flex (hardness) scale 120
Material Thermoplastic polyurethane (TPU)
Sole GripWalk
Waga jednej sztuki 26.5 cm: 2179 g
Fastening type BOA
Technologies GripWalk, BOA® Fit System, Fastfit Instep, MultiFit™ Last, Dual Adjustable Cuff Alignment, EliteFit Sport Liner, Energy Bolt Spine, Ski Edge Sensitivity Shims
Compatibility with bindings GripWalk

Shell

Shell width 96-98 mm
Shell moulding capability No
Calf width adjustment Yes

Inner boot

Inner boot EliteFit Sport
Built-in heating system No
Mouldable inner boot Yes

Fastening

Buckles 2 buckles adjustable via BOA system
Velcro Cam Buckle Strap 45 mm

Warnings and producer's data

Producer K2/BCA ELEVATE OUTDOOR COLLECTIVE / Customer Service Export | Seeshaupter Str. 62 , DE 82377 Penzberg | info@k2sports.de

Men's ski boots K2 Cortex 120 Zonal Boa (10L2902.1.1)

K2 Cortex 120 Zonal Boa Men’s Ski Boots have been designed for advanced skiers who value precise fit and riding efficiency. Made from thermoplastic polyurethane (TPU), they guarantee durability and resistance to changing weather conditions. Thanks to the moulded EliteFit Sport liner, users can expect comfort and excellent support during long days on the slopes.

BOA® Fit System Technology

The K2 Cortex 120 Zonal Boa men’s ski boots feature the innovative BOA® Fit system, which allows for quick and precise adjustment of the boot to the foot using two adjustable buckles. This system ensures even pressure distribution, resulting in greater comfort and control while skiing. Additionally, the Fastfit Instep technology makes putting on and taking off the boots easier, which is essential for skiers seeking convenience.

Advanced Construction Solutions

The K2 Cortex 120 Zonal Boa men’s ski boots are equipped with a GripWalk sole, providing better traction on slippery surfaces. The Dual Adjustable Cuff Alignment system allows precise adjustment of the cuff’s forward lean angle, enabling individual customisation to the anatomical shape of each user’s leg. This solution supports movement precision and enhances skiing efficiency.

Optimal Comfort and Performance

The K2 Cortex 120 Zonal Boa men’s ski boots offer calf width adjustment, ensuring a perfect fit and maximum comfort. The 45 mm Cam Buckle Strap stabilises the foot, minimising the risk of shifting during dynamic skiing. Additional technologies such as Energy Bolt Spine and Ski Edge Sensitivity Shims improve energy transfer and increase ski control precision.

K2 Cortex 120 Zonal Boa Men’s Ski Boots – Features:

  • Advanced ski boots for men;
  • Made from durable thermoplastic polyurethane;
  • Moulded EliteFit Sport liner for comfort;
  • BOA® Fit system for precise adjustment;
  • Two adjustable buckles for enhanced convenience;
  • GripWalk sole for improved traction;
  • Dual Adjustable Cuff Alignment system for personalised fit;
  • Fastfit Instep technology for easy on and off;
  • 45 mm Cam Buckle Strap stabilising the foot;
  • Energy Bolt Spine and Ski Edge Sensitivity Shims technologies for better control;
  • Calf width adjustment for optimal fit;
  • Designed for advanced skiers;
  • Flex rating of 120 for performance.
GripWalk
A system used in the soles of ski boots to improve walking comfort. The GripWalk soles are fully coated with a high-friction material for grip on any surface. The integrated ribbed tread enables direct and efficient energy transfer to the bindings.
BOA® Fit System
Fitting system, consisting of a strong line, hooks and an adjustable knob. It guarantees a stable and comfortable fit of the product to the shape of the body. The user has the possibility of very precise adjustment.
Fastfit Instep
Quick and convenient midfoot fitting is provided by a system that wraps around the shoe at a key point, stabilizing the foot without the need to overly tighten the entire upper. This facilitates precise fitting, increases comfort, and improves control while riding.
MultiFit™ Last
Thanks to the specially designed shell shape, fitting different foot types becomes much easier. The Multifit™ Last allows for precise fitting for both narrower and wider feet, providing comfort and better control. This universal solution increases comfort without the need for individual molding.
Dual Adjustable Cuff Alignment
The adjustable cuff system allows for precise adjustment of the cuff's tilt angle relative to the shin axis. This makes it easy to correct the boot's alignment to the individual leg structure, resulting in better control and greater riding comfort.
EliteFit Sport Liner
The internal sport liner adapts to the shape of the foot from the very first use, providing precise hold and comfort. Thanks to the use of thermoformable materials, individual adjustment is possible, which increases control and reduces pressure points.
Energy Bolt Spine
The Energy Bolt Spine core reinforces the shoe's construction, providing better energy transfer and greater responsiveness during riding. Thanks to the strategic stiffening of the rear part of the upper, control over the skis is improved, especially during dynamic turns. This solution increases stability without restricting the natural movement of the foot.
Ski Edge Sensitivity Shims
A profiled insert between the binding and the ski improves edge feel and increases steering precision. Slightly modified flexibility allows for better sensing of the ski's response when initiating a turn. This solution provides more intuitive handling, especially during dynamic skiing.
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Men's ski boots K2 Cortex 120 Zonal Boa

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Size Sizes table
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Sizes table

    Below you will find information that will help you choose the right size when purchasing ski boots from K2. You will only need a tailor’s measuring tape.

    Size (cm) 22.5 23.5 24.5 25.5 26.5 27.5 28.5
    EU size 36 37.5 39 40 41.5 42.5 44
    US M Size 6.5 7.5 8.5 9.5 10.5
    US W Size 5.5 6.5 7.5 8.5 9.5 10.5
    UK size 3.5 4.5 5.5 6.5 7.5 8.5 9.5
    Shell lengh (mm) 264 274 284 294 304 314 324
    AB - Mondopoint (cm) 22.5 23.5 24.5 25.5 26.5 27.5 28.5

    Mondopoint is the length of the foot (measured from the heel to the tip of the big toe).

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