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Quite possibly the Ruby Slippers of cycling shoes, the Sidi Genius 6.6 Carbon Lite Shoe is bound for the podium, or Kansas, whichever you desire most . The Genius 6.6 features a durable Lorica/ mesh upper and a five-year warranty so you don’t have to worry about new kicks, at least for a few seasons. The soft arch compression strap and Ultra buckle system provide a super-snug fit without numbness, and the light 6.6 carbon sole is stiffer than the frozen Snickers bar you tried to bite into last week.

  • Reinforced heel holds foot in position
  • Micro-release buckle allows for easy adjustment while riding
  • Patented Heel Cup System (HCS) mechanism tightens the top of the heel cup eliminating heel-lift

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Sidi Genius 6.6 Carbon Lite Shoe - Men's

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Here's what others have to say...

5 5

SIDI 6.6 Carbon Lite = Happy Feet

  • Familiarity: I've put it through the wringer

Incredibly stiff AND comfortable right out of the box. Excellent transfer of power to the pedals with typical superior quality from Sidi. Patent finish easier to keep clean than the standard lorica, and these 45.5's fit the same as my lesser priced genius models.

Unanswered Question

Write your question here...Looking for...

Write your question here...Looking for some shoes, these will be my first pair of clippless shoes? So, need to now how these fit. I wear a 91/2 --10. Can anyone tell me if they run big?

Unanswered Question

Looking at these 6.6, I have read that...

Looking at these 6.6, I have read that they run 1/2 size larger than the 5 pro. Is that correct?
Thank you

I was wondering if this specific shoe is...

I was wondering if this specific shoe is SPD compatible

No. This is 3 hole shoe. SPD is 2 hole.

Even if it would be compatible, why even consider pairing an SPD system with a $400 carbon road shoe?

5 5


A little pricey but are a great investment. I found the Sidi's to be comfortable right out of the box. I recommend an upgrade on the insole to enhance comfort even more. The 6.6's have proven to be durable and can easily be repaired with easy to find replacement parts.

so what you're saying is that I should upgrade the insole of a $400 shoe?

...if you want "to enhance comfort even more".

5 5

Incredibly comfortable without breaking in

The reviewers are right. These may not be the lightest shoes out there but they are amazingly comfortable. Like a good pair of comfy slippers. I have to check that I have them on! They are a bit flashy and may draw a few comments, but those in the know respect them for what they are! I swapped these for my regular shoes right before El Tour de Tucson's 111 miles without a real chance to test them and had no regrets. They performed flawlessly. I won't name my previous brand of shoes but it is history for me now. Sidis from here on out!

5 5

worth all that cash

yes, these are some of the most expensive non custom shoes on the market, yes they can be a a bit loud. but in the end these are some of the longest lasting best fitting shoes you can buy. there is a lot to be said for shoes that you'll wear every ride for every condition and they never fade or cause hot spots. if your in the market for new road shoes, and don't lose your lunch over the price tag then you'll be blessed with happy feet and long miles. oh and don't by white shoes.......

Cuz after 100 miles or so they aren't white anymore...

4 5

great shoe, but flashy!

Great shoe, as reviewed below. Fits my relatively long, bony, narrow foot with high arch very well. Heel counter is great. Improved buckle system better than my other two pairs of Sidis. I got the black version on this new shoe, and the synthetic leather is made to look like patent leather from the 60s -- super high gloss. Really shiny and bright. Have taken a load of grief about the patent leather look. Otherwise, a super shoe.

5 5

Awesome road shoe!!!

Extremely light, comfortable & stiff!, transfers 100% of your power right where you need it!, breathes well, but not too drafty. I would suggest getting some good insoles.

5 5

Great Shoe

This is a great shoe... it's light and stiff. The best part is the heel tension system no heel slip! The shoe breathes very well so your feets will stay cool. Highly recommended