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K2·Ski boots·Alpine ski boots

K2 Cortex 95 BOA W

High-performance women's ski boot with BOA lacing and Low Volume fit, built for experienced, aggressive skiers.

622 €
1Size
622 €
  • Delivery in 2–5 business days
  • 30-day returns
Ski expert
Not sure about the size? Chat with a ski expert, or call +46 370 33 97 70.
BOA system
Adjustment
BOA Fit System on the shell spreads pressure evenly across the foot.
Flex 105
Response
Flex 105 gives control at high speed and in technical terrain.
True LV
Fit
True Low Volume fit feels custom-molded straight out of the box.

About K2 Cortex 95 BOA W – Alpine ski boots

The K2 Cortex 95 BOA W is the boot for those who refuse to compromise between power, fit, and comfort. Built for experienced and aggressive skiers, it delivers race-inspired performance in a format you can wear all day long – from the first lift to the last turn.

With the BOA® Fit System on the shell, you can adjust the fit quickly and precisely. Pressure is evenly distributed across the foot, providing better blood circulation, increased stability, and a more secure feel in every turn. The combination of a True Low Volume fit, Fast Fit instep, and a fully laced liner ensures the boot fits like a glove – straight out of the box.

The 105 flex provides sufficient stiffness for pushing hard at high speeds and maintaining full control in technical terrain. At the same time, the Ski Edge Sensitivity shims and adjustable tongue in the liner maximize contact with the ski, giving you precise feedback with every movement.

K2 Cortex 95 BOA W, Specifications:

  • Flex: 105
  • Last: 96-98 True LV (Low Volume)
  • BOA® Fit System: Adjustable on the shell
  • Liner: Full lacing, Ski Edge Sensitivity shims, adjustable tongue
  • Instep: Fast Fit – quick and easy entry
  • Spine: Energy Bolt Spine for optimal power transmission
  • Rear Spoiler: Adjustable
  • Cuff Adjustment: Dual
  • Sole: GripWalk 
  • Women's

The K2 Cortex 105 BOA® W is for female skiers seeking a high-performance, precise, and comfortable boot. It's built to allow you to ski hard, fast, and feel every millimeter of the mountain – without sacrificing comfort. This makes it an obvious choice for passionate skiers with high demands.

Fit & last

The last is the boot’s width across the ball of the foot. 100 mm is a medium width and suits most people. If you have a wide foot or high arches, we can spot-heat the shell in the store where it presses. The boot should feel snug when you try it on: your toes touch the front when you stand straight and pull back when you bend your knees. The liner packs out 3–5 mm during the first week, so a boot that feels comfortable in the store will be too big after a week. Always measure mondopoint — boot size has nothing to do with your normal shoe size.

Boot fitting

Buy your ski boots from us and you get free boot fitting for 1 year from purchase. That means we heat-mould the liner and grind or punch the shell at no extra charge. If we need to add materials or products, such as a custom-moulded footbed, you only pay for those — not for the work. You’re welcome to drop into our store at Isaberg, Sweden for up to 1 year after your order is placed.

Shipping & returns

Delivery time: 2–5 business days to Germany, from our warehouse in Hestra, Sweden. If the boot doesn’t fit right, free boot fitting is included for 1 year from purchase. Call +46 370 33 97 70 if you’re unsure before you order.

K2 Cortex 95 BOA W specifications

CategoryAlpine ski boots
Skier levelAdvanced
Flex105
LastNarrow (96–98 mm)
LinerFull lacing, Adjustable tongue
BOA systemAdjustable on the shell
SpineEnergy Bolt Spine
SoleGripWalk
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Choosing ski boots
Your ski boots affect your skiing more than any other piece of equipment — and they’re the hardest to choose online. Below we go through mondopoint, flex, last and what a boot fitting does.
Mondopoint — measure your foot, not your shoe size
Ski boots are sized in mondopoint, which is the length of your foot in centimetres. Stand with your heel against a wall, mark your longest toe and measure. That measurement is your size. Your EU shoe size is a poor starting point because it varies between manufacturers. A ski boot should feel snug when it’s new — the liner packs out 3–5 mm during the first week of skiing.
Flex and what the number means
Flex describes how much force it takes to bend the boot forward. 60–90 is soft and forgiving, 90–110 is an all-round level, 110–130 is stiff for skiers who ski hard, and above 130 is race level. The number isn’t standardised between manufacturers, so a 100 from one brand can feel like a 110 from another. If you’re heavy or ski aggressively, you want a stiffer boot; if you’re lighter or a beginner, you want a softer one.
Last — the width of your foot
The last is the boot’s width across the ball of the foot. Narrow is around 98 mm, medium around 100 mm and wide around 102 mm. A medium last suits most people. If you have a wide foot, a last that’s too narrow isn’t something you get used to — but the shell can be heat-moulded to make room where it’s needed.
Boot fitting makes the difference
Nine out of ten skiers have something adjusted at their first fitting. We analyse your foot, heat-mould the liner and grind or punch the shell where it pinches. A custom-moulded footbed gives better heel hold and less foot fatigue, and is the single biggest improvement you can make without changing boots. Buy your ski boots from us and free boot fitting is included (materials such as footbeds are paid separately), and you’re welcome to drop into the store for up to 1 year after your order is placed.
Socks and fit go together
A thin, knee-high ski sock with no seams across the ball of the foot is the right choice. Thick socks make the boot tighter without making it warmer — it’s the air inside the boot that insulates, and a boot that pinches gives you cold toes. Never wear two pairs.
Frequently asked questions
Ski boots are measured in mondopoint, which is the length of your foot in centimetres. Put your heel against a wall, measure to your longest toe and choose that size. The boot should feel snug when it’s new.
Ski expert
Didn’t find your answer? Call +46 370 33 97 70 or chat with a ski expert.
K2 Cortex 95 BOA W
Select size
622 €