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Castelli Velocissimo Bib Short - Men's

Sale $77.97 - $129.95

Item # CST00AX

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Item # CST00AX

A time-tested favorite.

Castelli outfits the pros at the Cannondale Pro Cycling Team with an array of beautifully crafted kit each year, but we find it admirable that the brand also applies its legacy of impeccably fitting apparel to pieces created for the self-sponsored cyclist. The Velocissimo Bib Shorts stand as a perfect example of this: intended to be an everyday workhorse while you're logging weekly training miles, the Velocissimo features a nine-panel construction and a redesigned waistband to keep you comfortable in the saddle no matter what the day's ride calls for.

The Velocissimo's nine anatomically arranged panels are made out of Castelli's Affinity Lycra, a stretchy, moisture-wicking fabric that gives the bibs a contoured, streamlined fit. We generally see cycling bibs in an eight-panel design, and while we can't say for sure why Castelli adds an extra panel to the Velocissimo, we can assume it was added with the goal of improving fit. This year, Castelli also modified the waistband construction of the Velocissimo, so if you're replacing an older pair that has seen its fair share of rides, you can anticipate a softer, more forgiving fit around the midsection with this generation.

Castelli lines the Velocissimo with its popular KISS Air Chamois, which features dual-density cushioning in a strategic topography to ensure you stay comfortable in the saddle without any restriction to movement. Inspired by Castelli's top-tier Progetto chamois, the KISS Air also features a bacteriostatic, plush microfiber top layer that sits next to the skin for added breathability. Finishing touches like sublimated GIRO3 leg grippers to hold the shorts in place, reflective accents, and mesh bib straps that move with you in the saddle provide evidence to support Castelli's assertion that the Velocissimo is its best-selling pair of bibs.

  • Cycling race tech comes to the everyman bib shorts
  • Gently compressive material wicks moisture
  • Multi-panel construction fits like a skin upgrade
  • KISS Air chamois is comfortable to the point of lewdness
  • Mesh bib straps disappear under a jersey
  • Features the same elastic leg grippers as pro models
  • Castelli proves that comfort matters for us aspirants as much as for the professionals

Tech Specs

[body] Affinity Lycra, [waist] Doppio
yes, mesh
Leg Gripper:
Claimed Weight:
[large] 197 g
Recommended Use:
road cycling
Manufacturer Warranty:
1 year

Size chart


Men's Apparel
Chest 36.2in
Waist 31.5in
Hip 37in
Inseam 31.9in
How to Measure:
For best results, take measurements over your underwear.
Measure under your arms, around the fullest part of your chest.
Measure around your natural waistline, keeping the tape a bit loose.
Measure around the fullest part of your body at the top of your legs.
Using pants that fit well, measure the crotch seam to the bottom of the leg.

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Avg. ride time: 3h 43m per week
  • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.

Excellent quality & fit

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

Very good quality & overall fit BUT THEY DO RUN SMALL! I usually wear a Large & that's what I ordered (I'm 5'9", 170 lbs, 34 waist) and they do fit very snug like a second skin so if I ordered again I'd go for XL. Otherwise the proportional fit is good and the chamois is more firm than the spongy ones on some bibs so it's more comfortable on longer rides. Hopefully it will stretch just a bit after washing a few times.


  • Familiarity: I've used it several times
  • Fit: Runs small
  • Size Bought: XL

I bought the Velocissimo on sale as I have had great luck with my other Castelli cycling wear. Like the others, this item runs a good 2 sizes small, so order up. At 5'11" and 170, my other Castelli bib shorts are a medium. These fit just right at XL. Additionally, if you are at all broad in the shoulders, the bib straps pull a bit. The quality of the bib shorts and jersey are top notch, but after 10 miles or so I seem to get extra uncomfortable in the crotch. The chamois seems to be wide, as if designed for guys with spindly legs. Consequently, they rub a bit more in the groin crevices (if you know what I mean), leaving me irritated both physically and mentally. Maybe after a few more rides the pad will soften enough to not cause trouble, but, I guess only time will tell. All in all, if I had to to it all over again, I wouldn't recommend these shorts

You get what you pay for

  • Familiarity: I've put it through the wringer
  • Fit: Runs small

Castelli loyalist. Needed some bibs to add to the arsenal. Fit was way off than the race cut stuff I wear. 2 months in the seams started to rip where the bib straps connect to the bib. Then the back of the bib strap started to rip a month later. To finally incur it's finally blow which was the chamois pulling away from the bibs and creating a massive hole. The chamois also created a saddle sore, a first for me. All and all, if you want disposable bibs this is it. You get what you pay for.


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

Very comfortable bib. Solid quality as well. Size seems to run a bit small... But not too bad.

Great Bibshorts & Great Customer Service

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

Lots of people saying these Castello bibshorts run small, but I find them sized about right, yes they are a snug fit but as soon as you get on the road you soon forget you even have them on. the only real problem is Castelli's quality when it come to stitching but I'll forgive them for that as they as so comfortable and Competitive Cyclist are fabulous when there are any problems.

Love these Bibs

  • Familiarity: I've used it several times
  • Fit: Runs small
  • Size Bought: XL

Bought these Bibs to replace an older pair on Louis Garneau. The Castelli's are so much nicer. The fit is small(size up). I have worn them already on multiple centuries and have been very please with the comfort. Will probably be buying another pair soon. I am 6'0" and 163lbs with a 33 1/2" cycling inseam. Usually I wear a large but the XL fits perfect.

Awesome customer service!

  • Fit: Runs small
  • Size Bought: 2XL

After hearing about how comfortable Castelli bibs were I decided to check the reviews and purchased these. Based on the comments I double checked the size chart and compared it to the other brands I own, sadly once I received them I could barely fit in them. Spoke to Luke in customer service and not only did he place the order for the larger size (matching the previous sale price I had paid) but also sent me a UPS label at no charge; all with a great friendly and professional attitude! Kudos to you guys for making the customer feel appreciated
As far as the bibs are concerned, don't go by the chart order 2 sizes bigger so that it fits properly, refuse to go out there like a stuffed sausage!

Great shorts, but the sizing....

  • Familiarity: I've put it through the wringer
  • Fit: Runs small
  • Size Bought: XXL

Love these shorts, ideal for long rides.

I'm 6'2" and 180, and I squeezed into the XXL. Thought they might be too small but fit like a glove once I was pedaling.

Gentlemen: Always size up +1 with Castelli. Always. (sometimes even +2).

great looking product, but sizing is off

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

Never got to try it. Sizing chart said a size 35 waist is a large. Well not even close. This product runs way to small.

fits like a glove

  • Familiarity: I've used it several times
  • Fit: Runs small
  • Size Bought: large

these bibs are so nice and fit perfectly for me .... i am 5'9" 160 lbs and i bought a large based on other comments about castelli bibs ... when i first put them on it felt funny but when i was on my bike it was all business ... i put in 70 miles and hardly knew that i was wearing anything ....

Great shorts - Run Small

  • Familiarity: I've used it several times
  • Fit: Runs small
  • Size Bought: Large

Great, comfortable and stylish bib short. These do run on the small side so don't pay attention to the fit guide, go a size up. I am 5'11" 155# and the large fits great and comparable to a medium in Pearl Izumi shorts which I also own.

Excellent with a slim fit

  • Fit: Runs small
  • Size Bought: XL

The KISS Air pad took a little getting used to -- I changed to a saddle with a valley/groove last summer and read the KISS pad goes well with that design.

I've switched to Castelli from a different (excellent) brand on a whim after seeing these on sale. They're really excellent bibs, I like the slimmer fit and they hold up really well on long rides.