Fit + Tech
BFC 85 BOA® Women's Ski Boot 2027
Mondo 22.5 – 27.5
Women's
Flex 85 · BOA®
Find Your Fit
| Mondo | US Women's | US Men's | UK | Euro |
|---|---|---|---|---|
| 22.5 | 5.5 | 4 | 3.5 | 35.5 |
| 23.5 | 6.5 | 5 | 4.5 | 36.5 |
| 24.5 | 7.5 | 6 | 5.5 | 38 |
| 25.5 | 8.5 | 7 | 6.5 | 39 |
| 26.5 | 9.5 | 8 | 7.5 | 40 |
| 27.5 | 10.5 | 9 | 8.5 | 42 |
Ski boots are sized in Mondo point (cm foot length) — primary measurement for ski boot fit. US Women's primary column with US Men's equivalent shown for cross-reference. Standard conversion: Women's = Men's + 1 size (ski boot convention). 6 sizes from Mondo 22.5 through 27.5 in half-Mondo steps. Compatible with all standard alpine ski bindings (ISO 5355 / GripWalk soles).
Component Breakdown
BOA® Fit System
BOA® Fit System with micro-adjustable dial — dialed in, precision fit. Quick on-the-fly adjustments for layering changes (beanie, no beanie, etc.) without removing the boot.
Women's-Specific Design
Women's-specific design — built around the anatomical differences of women's feet and legs. Narrower last, reduced volume around the cuff and ankle, properly proportioned for female skiers.
Flex 85 — Forgiving Progression
Flex 85 — the most forgiving flex in K2's women's ski boot lineup. "Forgiving flex keeps progression fun" — softer than the Cortex 95/105 and Anthem 95/105. Perfect for newer skiers building confidence and technique.
Plush Liner Comfort
Plush-feel liner for all-day comfort — "the plush feel makes every run better than the last." Comfort-focused for progressing skiers who need warmth and support without pressure points on long ski days.
Multizone Dual Core
Multizone Dual Core — Poplar + Beech with tapers between the insert packs for a more forgiving flex. Tuned for women's progression and responsiveness.
SuperDrive™ ADV Sintrured Base
SuperDrive™ ADV sintrured base — combines the durability of extruded with the hardness of sintered. Higher pressure and temperature in manufacturing creates surface hardness near most sintered bases — durable and low maintenance for progressing skiers.
Classic Cuff Construction
Classic cuff construction with traditional two-piece overlap design — reliable forward lean and efficient energy transmission. Direct power transfer with a forgiving flex feel.
Best For: Piste
Per the page, the BFC 85 W is best for Piste — groomer-focused progression. "Confidence starts with comfort" — built for newer or progressing female skiers who want approachable performance.
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 2-10 for this flex (check binding specs)
- Forward lean adjustable via rear spoiler (check manual)
In the Box
- 1× K2 BFC 85 BOA® W ski boot (left or right, Mondo size as ordered)
- 1× Boot bag / storage sack
- BOA® laces installed (no extra included)
- GripWalk sole pads pre-installed
Rider Profile
Flex Rating
Best For
Piste (Groomer Progression)
Skill Level
Beginner – Intermediate
Fit System
BOA®
Confidence Starts with Comfort — BOA® + women's-specific fit + Flex 85 + plush liner + Multizone Dual Core — "the plush feel makes every run better than the last." Forgiving flex for the progressing female skier.
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.
