Fit + Tech
Cortex 110 BOA® Men's Ski Boot 2027
Mondo 24.5 – 28.5
Men's
Flex 110 · BOA®
Find Your Fit
| Mondo | US Men's | US Women's | UK | Euro |
|---|---|---|---|---|
| 24.5 | 6.5 | 7.5 | 6 | 39.5 |
| 25.5 | 7.5 | 8.5 | 7 | 40.5 |
| 26.5 | 8.5 | 9.5 | 8 | 42 |
| 27.5 | 9.5 | 10.5 | 9 | 43 |
| 28.5 | 10.5 | 11.5 | 10 | 44 |
Ski boots are sized in Mondo point (cm foot length) — primary measurement for ski boot fit. US Men's and US Women's equivalents shown alongside. Standard conversion: Women's = Men's + 1 size. 5 sizes from Mondo 24.5 through 28.5 in half-Mondo steps — same narrow range as the Cortex 120. Compatible with all standard alpine ski bindings (ISO 5355 / GripWalk soles).
Component Breakdown
LV Shell — Premium Lightweight + Low-Volume Fit
LV Shell delivers premium lightweight construction with a low-volume fit — narrower last shape for skiers with narrower feet. All the performance enhancements of the Cortex series in a more accommodating fit profile.
Flex 110 — Precision Without Race-Boot Ego
Flex 110 (medium-stiff) delivers precise, confident energy transfer without the punishing stiffness of a true race boot. Tuned for skiers who want the precision of a high-performance boot with the forgiveness of a recreational flex.
Classic Cuff Construction
Classic cuff construction with traditional two-piece overlap design — reliable forward lean and efficient energy transmission. Time-tested design that delivers direct power transfer skiers trust.
BOA® Fit System — Enhanced Micro-Adjustability
BOA® Fit System with enhanced micro-adjustability — secure, custom fit that locks in the heel and lower leg. Dial-in adjustment for fine-tuning fit and pressure distribution for all-day comfort.
Elite Fit Liner
Elite Fit Liner delivers precise foot wrap and responsive energy transfer. Heat-moldable for custom fit — conforms to individual foot shape over time. Premium construction designed for the high-output skier.
GripWalk Outsole
GripWalk outsole provides safe and comfortable walking thanks to its curved rubber shape. Compatible with all GripWalk bindings (ISO 23223 standard) and traditional alpine bindings (ISO 5355) — versatile compatibility for any binding setup.
ISO 5355 Standard Compliance
ISO 5355 standard compliance — compatible with all traditional alpine ski bindings. The classic alpine boot sole geometry fits any ISO-compliant binding on the market.
Best For: Freeride, Big Mountain, Powder, Speed
Per the page, the Cortex 110 is best for Freeride, Big Mountain, Powder, and Speed — versatile performance build. Softer than the Cortex 120 for all-day wearability without sacrificing precision.
Mounting & Compatibility
- Compatible with all ISO 5355 alpine ski bindings
- Compatible with all GripWalk (ISO 23223) bindings
- Standard 30mm ski boot hole pattern — fits all alpine bindings
- DIN setting range: typically 3.5-12 for this flex (check binding specs)
- Forward lean adjustable via rear spoiler
In the Box
- 1× K2 Cortex 110 BOA® ski boot (left or right, Mondo size as ordered)
- 1× Boot bag / storage sack
- BOA® laces installed
- GripWalk sole pads pre-installed
Rider Profile
Flex Rating
Best For
Freeride, Big Mountain, Powder, Speed
Skill Level
Advanced – Expert
Fit System
BOA®
Low-Volume Precision, All-Day Dominance — LV Shell + 110 Flex + Elite Fit Liner + BOA® — precision fit without the race-boot ego. Level up your game on the hill.
Prepared with intention.
Every product is carefully inspected and handled by our team before it ships. From fit and function to final details, we make sure each piece is ready for the outdoors ahead—so you can focus on the experience, not the gear.
Passion drives us
At SpokeX Bike Co., bikes aren't just our business — they’re our way of life. As a rider-owned and operated shop, every decision we make comes from firsthand experience on the trail, at the race, and on the open road. We know what it’s like to chase a new line, push through the pain cave, and celebrate the ride — because we live it every day.
