The BFC BOA 85 W 2027 Boots from K2 are designed specifically for women looking to progress with confidence — an indulgent 85 flex, micro-adjustable BOA® system, and high volume for exceptional comfort from the very first run.
Performance and construction
- BOA® Fit System: micro-adjustable dial, ultra-strong laces, and low-friction guides for a precise and secure fit in all conditions
- Powerfuse Spyne: a co-injected "Y" shaped support on the rear that maximizes lateral stiffness and optimizes fore/aft flex efficiency for responsiveness on all terrain
- Cushfit Comfort Liner: additional foam in key areas for increased comfort and a plush feel right out of the box
- Après Mode 2.0: walk mode with a 50° range of motion — the rear lever unlocks the cuff for maximum comfort between runs
- Hands Free Entry: dual-material overlap for intuitive, hands-free entry and exit
- FastFit Instep: softer TPU in the instep area for quick and easy entry
- 50mm Adjustable Cuff: personalized calf circumference adjustment for optimal support
- Removable GripWalk Outsole: pre-installed ISO 23223 rockered sole for natural and comfortable walking
- Fully Heat-Moldable: shell and cuff adaptable for a custom fit
Fit and compatibility
- Flex: 85
- Volume: High Volume MultiFit Last (96–98 mm)
- Sole: GripWalk ISO 23223 (pre-installed)

