For purchases over €39 in the Skiing, Snowboard, Run & Outdoor, and Lifestyle categories, get an additional 8% discount. (excluding exclusive products, on-piste ski boots & Sidas insoles, and the brands Bryton, Garmin, GoPro, Pieps, Suunto, Tacx, and Thule). Use code ZIMA8

K2 Ski Boots Cortex 110 Boa 2026

Instead of: 599,95€
Now: 389,97€
Akcijska ponudba velja tudi v trgovinah.
Lowest price last 30 days: 599,95€
Offer ends: 02/02/2026

Promotional offer: If you buy a pair of new SKI or SNB boots, you can get a pair of women's / men's SKI or a pair of women's / men's SNB socks 30% off. Enter promotional code: SNOWSOCKS

* Only one promo code can be used for each purchase. More

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Estimated FREE delivery Slovenia: monday, 02.02.2026 More info []
Estimated FREE delivery SLO and CRO: monday, 02.02.2026Estimated FREE delivery other EU countr.: thursday, 05.02.2026

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Product description

Get the low-volume fit and responsiveness of a performance boot — without the race-room stiffness or ego. The K2 Cortex 110 BOA® is built for skiers who want precision, comfort, and all-day control, combining modern design with cutting-edge fit technology. Thanks to the FastFit Instep, slipping in and out of your boots is quick and effortless, so you can focus on improving your game and charging confidently down the hill.

Engineered with the BOA® Fit System, the boot delivers a micro-adjustable, even fit that wraps seamlessly around your foot, optimizing comfort and power transfer. Its MultiFit™ Last and True LV Fit provide a narrow heel and ankle hold, while maintaining a touch of room in the forefoot for lasting comfort. Inside, the EliteFit Sport Liner and Full Lace-Up design ensure an anatomical, locked-in feel, and the Adjustable Liner Tongue helps fine-tune pressure distribution across the top of the foot. On the outside, TPU-coated panels add durability and structure, while GripWalk outsoles enhance traction and walking comfort — all without compromising binding compatibility. The Energy Bolt Spine provides strong rear support with the option to adjust flex response, and the Liner Ski Edge Sensitivity Shims allow you to customize how quickly or smoothly your skis engage the edge.

The K2 Cortex 110 BOA® isn’t about racing — it’s about mastering your mountain, one precise, powerful turn at a time.

Features:

  • Flex index: 110
  • Foot width: 96-98 mm
  • MultiFit™ Last - The MultiFit Last was developed in conjunction with the BOA®. Fit System to accommodate a variety of foot shapes ranging from 96mm to 98mm.
  • True LV Fit - All new low volume last featuring our narrowest heel and ankle while maintaining a little room in the forefoot and toe box for an all day performance fit.
  • TPU Coated Top and Bottom - A rugged TPU (thermoplastic polyurethane) coating on the boot’s top and bottom adds enhanced durability, weather resistance, and structural support. This protective layer helps shield against scuffs, moisture, and impacts—keeping your boots performing and looking sharp season after season.
  • BOA® Fit System - The BOA® Fit System delivers dialed in performance and a micro-adjustable precision fit. It consists of three integral parts: a micro-adjustable dial, lightweight yet extremely strong laces and low-friction lace guides, which are applied in uniquely designed configurations to improve the fit and performance of the boot.
  • EliteFit Sport Liner - This liner blends comfort and performanc
  • Full Lace Up Liner - Lace up liner for the optimal liner fit
    Adjustable Liner Tongue - -Tongue is attached with velcro in the tow box and can be adjusted to help provide the optimum fit across the top of the foote with a medium-volume fit and supportive ankle pockets. It’s great for intermediate to advanced skiers looking for all-day skiability without sacrificing control.
  • Fastfit Instep - Softer TPU material is used in the instep area of select models' shells for quick and easy entry and exit.
  • GripWalk Outsoles - Removable and interchangeable ISO 23223 alpine rockered soles collaboratively designed to work with Marker’s Grip Walk binding system for better grip and added comfort when walking and standing in boots, but doesn’t compromise the power transmission and release function between the boot and binding when skiing. Preinstalled.
  • Energy Bolt Spine - A bolted rear cuff gives Cortex excellent rearwards support and a precise forward flex. The top bolt can be removed to allow for a more progressive cuff response and slower rebound.
  • Liner featuring Ski Edge Sensitivity Shims - Ski Edge Sensitivity allow the skier to tune edge initiation of the ski.
    SES Shims on Medial side of liner Cuff produce more inside edge angle. Skis feel more reactive and quicker to edge, excellent for slower more precise skiing.
    SES Shims on the Lateral side of liner Cuff produce less inside edge angle. Skis feel more controlled and more stable, excellent for higher speeds.
  • Dual Cuff Alignment - Dual sided cuff alignment for +/-2 degrees of cuff adjustment.
  • 40MM Velcro Strap - A versatile mid-width VELCRO® power strap that balances ease of adjustment with solid cuff closure. It adds extra responsiveness to boots without added bulk.
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Item code: 10L2904.1.1-275
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Size Availability Šk.Loka Lj. BTC Lj. Tržaška Radovljica Maribor OnLine  
275 In stock :) OnLine
Product is available for an online purchase.
 Šk.Loka
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+386-4-29-27-712
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 Lj. BTC
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 Lj. Tržaška
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 Radovljica
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 Maribor
In order for this item to be picked up in Maribor shop, please call us on this number:
+386-59-25-90-40
or send us email to maribor@extremevital.com
 OnLine
Product is available for an online purchase.
285 In stock :) OnLine
Product is available for an online purchase.
 Šk.Loka
In order for this item to be picked up in Skofja Loka shop, please call us on this number:
+386-4-29-27-712
or send us email to loka@extremevital.com
 Lj. BTC
Product is on-stock in our BTC shop.
 Lj. Tržaška
Product is on-stock in our Ljubljana Tržaška shop.
 Radovljica
Product is on-stock in our Radovljica shop.
 Maribor
In order for this item to be picked up in Maribor shop, please call us on this number:
+386-59-25-90-40
or send us email to maribor@extremevital.com
 OnLine
Product is available for an online purchase.

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