K2 B.F.C. 120

Model Year
All-Mountain Walk
Last Width
Flex Index
Price (MSRP)

The Gist

Testers say the new 2018 K2 B.F.C. 120 isn't just Built For Comfort, it's built to house the most massive meat-dogs ever to maraud the slopes! Mega volume in both the lower boot and upper cuff and a new, stiffer 120 flex should provide the sort of room and support the highest of volume human has been waiting for.

The Fit

One tester summed up the B.F.C.'s overall fit this way: Soooo huge! However, he went on to say that the fit seemed congruent and well-shaped for the thickest of feet and legs (a sentiment echoed by other testers as well). And then he then pondered whether there are actually feet this big. We know there are, and we know that some folks simply don't like tight fitting footwear of any sort—and as such, this boot will appeal to fans of Uggs, Crocs and flip-flops.


The stance is upright for those with average calf volume—a larger calf will push the lower leg more forward and be just right, our testers guessed. The 120 flex is a bit overstated, testers reported, and they wondered if it would be enough support for the XXXL dude attached to such a foot. However, those who had tested last year's 90-flex said this was a big improvement, performance-wise. Generally, testers all agreed that the B.F.C. 120 was strong enough and quick enough for just about any decent skier with as balanced a lateral stance as one could want. Performance scores exceeded testers' expectations on this one.

Cool Features

The Apres Mode (that's what K2 calls it) walk feature is adopted from the other more serious hikers in the K2 boot line, but if nothing else, K2 knows its target customer. This cuff release mechanism is all about strolling parking lots, tailgating, beers at lunch (maybe breakfast too), and its ease of use and range of motion is fantastic, testers said. GripWalk soles can be purchased to make the strolling even more sublime (if you have an appropriate GripWalk binding).

Sizes (MP) 
Hike Mode 
Heat Moldable Liner 
Boot width profile 
Also in this Collection 
B.F.C. 100 Heat, $700; B.F.C. 100, $550; B.F.C. 90, $450
Cantology Compatible 
Total Avg Score 
  • 2017-18 K2 B.F.C. 120 at America's Best Bootfitters Boot Test
  • 2017-18 K2 B.F.C. 120 at America's Best Bootfitters Boot Test
  • 2017-18 K2 B.F.C. 120 at America's Best Bootfitters Boot Test


  • “Easy-skiing, user-friendly boot with a stand-out liner!” -- Mike Evans
  • “Intuitive and attentive to a variety of inputs.” -- Eino Holm
  • “Roomy and comfortable—lightweight with a good walk mode!” -- Eric Kipp
  • “Biggest of the test, but surprise, surprise it's got some quickness!” -- Kevin Gabriel


  • “Cuff has a hinged feel—tried to punch it and was terrified.” -- Eino Holm

This boot available at...

Seattle, WA
Warren, VT
Taos Ski Valley, NM
Telluride, CO
Telluride, CO
Ellicottville, NY

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