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Fi'zi:k M3B Uomo Boa Shoe - Men's
Sale $164.97 - $192.46 $274.95 40% Off

Item # FIZ002K

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  • Black/Red, 40.0 ($164.97)
  • Black/Red, 40.5 ($192.46)
  • Black/Red, 41.0 ($164.97)
  • Black/Red, 41.5 ($192.46)
  • Black/Red, 42.0 ($192.46)
  • Black/Red, 42.5 ($192.46)
  • Black/Red, 43.0 ($164.97)
  • Black/Red, 44.0 ($164.97)
  • Black/Red, 45.0 ($192.46)
  • Black/Red, 46.0 ($192.46)
  • Black/Red, 46.5 ($164.97)
  • Black/Red, 47.0 ($164.97)
  • Black/Red, 48.0 ($164.97)
  • Black/Black Carbon, 40.0 ($164.97)
  • Black/Black Carbon, 43.0 ($164.97)
  • Black/Black Carbon, 43.5 ($192.46)
  • Black/Black Carbon, 44.5 ($192.46)
  • Black/Black Carbon, 45.0 ($192.46)
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Item # FIZ002K


Sneak up from behind.

Like most great champions, Fizik's M3 Uomo Boa Men's Shoes prefer to lay low, act unassuming, and then strike before anyone else knows what's happening. It's certainly not the flashiest shoe on the market, designed for those who prefer to keep their mouths shut and let their riding do the talking, but the Microtex laser-perforated leather upper is ultra-comfortable and keeps your feet cool while you're off the front or just logging base miles.

The Boa closure system and hook-and-loop toe strap ensure a precise and comfortable fit that won't irritate you during long rides, and the Uomo's Fizik Cycling Insole is designed to provide lightweight support and sensitivity when you're on the pedals. Sensitivity doesn't come at the cost of power, though, as the Uomo boasts a stiff UD Carbon Fiber sole that provides a strong and powerful platform for race days and training rides alike.

  • Laser-perforated Microtex upper
  • Boa closure system
  • Uomo cycling insole
  • UD carbon fiber sole

Tech Specs

Upper Material:
anti-scratch leather
Boa IP1
Fizik Cycling Insole
UD Carbon Fiber, removable skid plate
Claimed Weight:
350 g
Recommended Use:
Manufacturer Warranty:
2 years

Size Chart


36 4.25 5.75 23
36.5 4.75 6.25 23.35
37 5.25 6.75 23.7
37.5 5.5 7 34
38 6 7.5 24.35
38.5 6.25 7.75 24.7
39 6.75 8.25 25
39.5 7 8.5 25.35
40 7.5 9 25.7
40.5 8 9.5 26
41 8.25 9.75 26.35
41.5 8.75 10.25 26.7
42 9 10.5 27

Reviews & Community


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Great shoe

  • Familiarity: I've used it several times
  • Fit: Runs small
  • Size Bought: EU 42 (US 9)

Bought R3B’s last spring. Liked the Boa on them so much decided to go with M3B’s to for CX. So far not disappointed. Wore Sidi for 20 yrs. great shoes but don’t fit me as well as Fizik. I wear a 43 in Sidi but a EU 42 (US 9) in Fizik. Be aware of size. ‘15 model of this shoe in EU 42 is a US 8.5, but in ‘16 version it is a US 9. Highly recommend Fizik. Have pairs of R3B’s, R4B’s and now M3B’s. Love them all.

So Far, Great Shoes

  • Familiarity: I've used it once or twice and have initial impressions
  • Fit: True to size

Just got these and, right out of the box, went for a 3 hour + gravel ride with a little 2-track added in. Super stiff soles but at the same time comfortable for the whole time. The uppers are compliant but feel supportive. There are nice anti- slip strips applied inside the heel cups.
Overall they look to be very well constructed. Beware though, I got the Black/black carbon and they are VERY shiny. Not everyone will like that.
Another minor niggle: they did not come with toe spikes.
Size wise, they seem to run a little smaller than my Sidi and Giro. I'm normally a 43 but found the 43.5's to be spot on.

Great shoes

  • Familiarity: I've used it several times
  • Fit: True to size

These shoes are very comfortable. The only downside is the hard plastic bottom was initially fairly slippery,

great mtb shoe

  • Familiarity: I've put it through the wringer
  • Fit: True to size
  • Size Bought: 44.5

Perfect fit as i have a wide foot. very light for an mtb shoe and the boa system works very well. i actually purchased the R3's for road...

Improve Quality Details

  • Familiarity: I've put it through the wringer
  • Fit: True to size
  • Size Bought: 45

Overall satisfied with this shoe which replaced a several year old pair of of Sidi Drako's. The feel and fit is beautiful, but the construction details could use upgrade. Specifically, use a softer replaceable skid plate. The current plastic is light and durable but too hard. And improve the tongue construction which is glued and comes apart. The heel liner is cheap and too easily worn down, and, finally, the mechanics of the Boa device could be improved to prevent snagging.

Runs really small, narrow fit

  • Familiarity: I returned this product before using it
  • Fit: Runs small
  • Size Bought: 48

I normally wear Specialized S-works shoes, size 48. Ordered these in a 48 which according to the size listing, should be a little bigger than Spez's 48, but were way too tight. Could barely cram my foot in. Otherwise they look well built. Try ordering 2 sizes larger than normal.

Great Mountain Bike Shoes!

  • Familiarity: I've used it once or twice and have initial impressions
  • Fit: Runs small

This is my first pair of cycling shoes, and today, after getting the cleats and pedals put on from my neighborhood bike shop, I was totally impressed with the style, quality, and the fit of the shoes. The BOA system is great, easy to adjust to give both feet the comfort and symmetry while riding. The size of my shoes, depending on the vendor, varies, but usually a size 11, and I got the size 45, which is supposedly a size 11 1/3, and the shoes fit me perfectly, and yes, I have narrow feet. Highly recommended.

Great Mountain Bike Shoes!

These shoes are dialed!

    Best MTB shoe I've used thus far. Light weight, stiff and sexy. The heel is snuff and I can really get a strong pedal stroke. First ride in them I headed out for a 30 mile single track session and the shoes blew me away. Get in these M3's and ride! The BOA system is amazing.

    What type of shoe were you wearing prior to these? How was the fit compared to the Comp Cyclist sizing chart?