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  • Sidi - Genius 6.6 Vent Carbon Shoes - Black Vernice/White

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  • Sidi - Genius 6.6 Vent Carbon Shoes - Black Vernice/White

Sidi Genius 6.6 Vent Carbon Shoes

sale $219.97 $399.9545% Off

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    • 40.0

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    • Black Vernice/White

    12 Reviews


    A more-traditional Wire.

    You’ve surely seen Sidi’s Wire shoes, with their Boa closures and aggressively modern styling. If you’re looking for the same performance, but prefer a slightly more traditional look, or a more-traditional closure system, the Genius 6.6 Vent is the ideal candidate. In fact, they are the Wire in everything but aesthetics and closure. Same sole, same vents, same heel-retention, etc., but instead of the Boa, you’ll find Sidi’s famed Caliper Buckle and its reinforced High Security Velcro. All of these straps are highly padded, so that even if you like your shoes brutally tight, your feet will feel fine the next day.

    The Genius also features Sidi’s Vent Carbon sole, with an air intake that can be easily closed off for training or racing on cooler days. The carbon fiber is incredibly stiff, as a whole, but Sidi engineered a small amount of flex at the toe area to allow the foot to move naturally, so it won’t feel like you’re pushing down on a 2x4 all day.

    • Vented carbon fiber sole
    • Identical to the Wire, except for closure and aesthetic
    • Heel Security System
    • Caliper Buckle and High Security Velcro closure
    • Item #SID0110

    Tech Specs

    Upper Material
    [uppers] Lorica Vernice Microfibre, [ventilation] ballistic mesh
    main strap with ratchet closure, 2 hook-and-loop straps
    Sidi Comfort Fit
    carbon fiber
    Cleat Compatibility
    3-hole road
    Recommended Use
    Manufacturer Warranty
    1 year

    Tech Specs

    • Reviews
    • Q & A

    What do you think about this product?

    Have questions about this product?

    fantastic shoes

    • Fit: True to size

    I haven't been this excited about a new pair of shoes since the 2nd grade. my last pair was mavic, which were comfortable and durable, especially for the $120 price point.

    these shoes offer great stiffness in the soles, plenty of comfort without extra padding/weight/bulk, and the toe box is wider than average, which allows for a snug fit at pressure points without making your foot feel claustrophobic. while expensive (even when on sale) for most riders, I think these shoes are definitely worth it given superior comfort/performance.

    Great Shoes

    • Fit: True to size
    • Size Bought: 48

    I've been wearing Sidi cycling shoes for a long time. I think they are the best. I have a narrow foot and they tend to run narrow unless you get the wider option. The quality is great and I usually get at least 5 years of wear out of them. The soles are stiff and that's really nice compared to less expensive more flexible soles. They are expensive but worth it. I've got almost 1k miles on these new shoes and I like them.

    Great Value

    • Familiarity: I've put it through the wringer
    • Fit: True to size
    • Size Bought: 42

    This shoe is why people buy Sidi's. These are my 3rd pair of Sidi's for the simple reason no other shoe fits me better, has so many features and is made as well. A 42 fits my 81/2 EEE perfectly. I can get them snug yet they don't feel tight. The heel cup adjustment allows you to dial in a custom fit. Cleat placement is a breeze with minor adjustments thanks to the markings on the sole. The fourth screw hole enables you to replace cleats exactly where your old ones were. This version of the shoe has a vent in the front that can be opened or closed depending on the temp. Materials and build quality are first rate unlike the Fizik's which I tried. The inside of those were as coarse as sandpaper. I was comfortable in these shoes from day one. Although not the cheapest shoe out there you would be hard pressed to find a better made shoe with as many features. 100% satisfied.

    Competitive Cyclist was a great help here since I went through 4 pairs of another brands shoe until I realized I was wasting my time. They took back the returns and paid for the shipping. Just a suggestion if you are buying shoes mail order. Get 3 or 4 pair at the same time. Return ones you don't like. It will save you time and money in the long run

    The right fitting shoe!

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

    I've searched and tried and whined about cycling shoes being too narrow, too small, too expensive, etc. I took a leap of faith and purchased the Sidi Mega Genius 6.6. Wide, comfortable, safe and stylish, these shoes are the best available. If your feet are wide you will enjoy these wonderfully comfortable shoes!

    Excellent Long Distance Shoe

    • Fit: True to size

    I ride long miles and needed a new pair of shoes after 25k miles in a predecessor pair of Shimano. I like a solid, stable, good-fitting shoe, and have found a few others that I tried before buying these to be too light and flexible, which in my experience can lead to discomfort on century-plus rides. These Sidi's are great, and the sale price ($325) is a decent bargain. Sizing-wise, I found them very true -- I was surprised to see someone say they run big. I'm an 11.5 US and the 45.5 fits great -- 46 would be too roomy. Highly recommended.

    I won't stray again

    • Familiarity: I've used it several times
    • Fit: True to size
    • Size Bought: 43 1/2

    I've been using Sidi's Genius 5 shoe for years now both for road riding and commuting. I probably have 4-5K miles on my last pair. So when I bought a new road bike and upgraded to Look pedals, I let the bike shop guy talk me into another brand of shoe to use exclusively for my weekend road rides. He suggested the velcro on the Sidi shoes would eventually wear out, so the wire system on the Specialized shoe would be better. Well it turns out that Sidi just makes a far better and more comfortable shoe. I would get hot spots and numbness on the bottoms of my feet within 45 minutes of riding, and would have to get off my bike and walk around to go for more than 90 minutes or so.

    So I decided to cut my losses and invest in a new pair of Sidi's and never look back. So far I've only used the Genius 6.6 on my trainer (it's been a tough winter here in Boston) but they fit like a glove, the are super stiff, light, and breathable. I can't wait to finally get them out on the road, but based on my Genius 5 experience I am not the least bit worried about the velcro.

    The only reason I give these shoes 4 stars is the price. They are a bit lighter than the Genius 5, have a stiffer sole, and they look way cooler, but are they really $250 better? Hard to say but I know that this summer when I'm 2 1/2 hours into a ride and my feet still feel great, I won't be complaining one bit.

    I won't stray again

    Worth the premium price

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

    I bought these to replace my white Sidi Ergo 3, which also had a similar color combo, carbon weave sole, a vent, and a ratcheting top strap, but with 2 rotary tightening fasteners like on the current model Wire. The wire fasteners on the Ergo 3 worked, and the nylon wire surprisingly never broke, but I was never a fan of twisting to tighten, and found it a little awkward and gimmicky.

    I replaced my Ergo 3 with these 6.6 Vent because I really like the ratcheting strap but personally find the 2 lower Velcro(R) straps more convenient, reliable, and intuitive to use. The carbon sole on the 6.6 Vent is extremely stiff, which I actually find to be highly comfortable in how efficiently it transfers power to the pedals. I leave the vent "open" for the hot Texas days, though I can't say for sure that I notice the difference. Could be because they are still new, but I feel like the footbed is more comfortable than my old Ergo 3s were. My first ride on the 6.6 Vent was a hot, brisk century, and I had no issues the entire ride.

    These are not cheap, but for me, the combination of features and overall high-end materials and design justify the premium price. If I bought a 2nd pair as an alternate I would look at one of the more value-priced Sidi shoes which are probably also great for the money.


    • Familiarity: I've put it through the wringer

    I wore these for a hard 8000 miles season last year and am on my second with them. The shoes are super durable look decent, fit pretty darn good and are well ventilated. I have a longer second toe so I do have some issue with the fit as far as length. I imagine if you have normal feet these would totally rock your world. I will probably go semi to full custom next pair of shoes, but overall Sidi is a stand out brand that will make your cycle feet happy.

    Just like Ivan Basso

    • Familiarity: I gave it as a gift but have feedback to share
    • Fit: True to size

    Bought these for my dad who has worn a pair of Sidi's for about five years this pair. So far he has worn them on a couple of rides and says that they fit very similar to other Sidi's he has worn. He loves how the venting and how well air moves through. All in all it is a great quality Italian shoe; stiff, lightweight and well made would recommend this product.

    Great Italian Quality

    • Familiarity: I've put it through the wringer

    This is a superb pair of shoes. I purchased a pair back in the summer and love the quality and fit of these. They are very ventilated and i do not get hot spots when wearing them. I am a US size 11 and the 45.5 fit perfectly. They stay nice a snug on the feet and the straps are very easy to adjust. This is my second pair of Sidi's. The first pair lasted me 8 years so they have awesome quality. Just what you would expect from an Italian shoe.

    Great Italian Quality

    Too Big!!

    • Familiarity: I returned this product before using it

    I recently found that normal shoes do not fit me well. I have wide feet. After trying a size 44 at a store I decided to order the 44 MEGA. When I received them I realized that they were too big. Competitive Cyclist does not have the 43.5 MEGA in this style so I order the Sidi 5 Carbon and I will see how they fit. They look like a really good shoe very disappointing they don't have my size.

    The Best Road Shoe

      I have ridden Sidi's for the last 5 years. My first pair were Genius 5. I would rate them fair. These Genius 6.6 are excellent. They have addressed all the issues I had with the 5's. they are extremely well vented., they provide great side support where the 5's had none. The wide size fits my toe box perfectly without allowing me to swim in the rear of the shoe. This shoe actually fits American feet, not just Italian feet! I will keep buying these. 5 stars.