The K2 BFC 100 Boa is an all-mountain ski boot designed for men seeking a blend of comfort and control on varied terrain. Its high-volume shell and Boa closure system make it a good choice for skiers with wider feet who want on-the-go adjustability without fussing with traditional buckles.
Equipped with a Boa dial, this boot lets you fine-tune the fit quickly, even while wearing gloves, so you can tighten or loosen the shell in seconds. The 100 mm last provides extra room across the forefoot, reducing pressure points for riders who need a bit more space. With a flex rating of 100, the BFC 100 Boa strikes a balance between responsiveness and forgiving flex, helping you maintain control without feeling overly stiff.
A flex index of 100 falls into the comfort category for men’s ski boots, meaning it offers more support and precise feedback than beginner models (80–90) but remains easier to flex than stiffer performance boots (120+). This mid-range flex helps absorb bumps and uneven snow while still transmitting your movements effectively to the ski edges.
Click to read the product description by K2
K2 says about theBFC 100 Boa
Out-of-the-box comfort meets true on-snow performance in the all-new BFC 100 BOA®.
Designed for advanced skiers who prefer a roomier fit, the brand new Cushfit Plus liner
and slimmed-down heat-moldable shell combine to create a boot that accommodates a wide
variety of feet without sacrificing the support and responsiveness.
Product specifications
| Flex | 100 |
|---|---|
| Last | 100 mm |
| Volume | High |
| Weight | 1950 gr (26.5) |






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