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  • Castelli Rosso Corsa Light Bra - Women's
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  • Castelli Rosso Corsa Light Bra - Women's Back
  • Castelli Rosso Corsa Light Bra - Women's Fabric Detail
  • Castelli Rosso Corsa Light Bra - Women's Logo
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CastelliRosso Corsa Light Bra - Women's
Sale 35% Off$38.97 $59.95

Item # CST0753

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Item # CST0753

A bra made just for cyclists.

Just as cycling equipment benefits from the feedback of the sponsored male racers, the gear used by the growing number of female cyclists reflects the hard-earned knowledge and feedback that pro women can give. The input of ladies sponsored by Castelli has led to this uniquely cycling-specific sports bra, the Castelli Rosso Corsa Light Bra.

Cycling in particular demands slightly different things from a bra than running does. Chest-crushing compression is less of an issue, so the Rosso Corsa Light Bra focuses more on breathability and ventilation. Sport bras can become quite soggy when you're really exerting yourself, and then you're stuck with what feels like a sweaty straightjacket wrapped around you for the duration of the ride. This is a problem (particularly in winter weather) when you're riding over multiple long climbs where you're sweating on the way up and freezing on the way down. This bra has been designed with an ingenious mix of tech fabrics, which are all intended to provide the optimum amount of wicking to keep you comfortable and dry. The sides and back have maximum ventilation with the Tulle Mesh inserts in place to help ventilate.

That is not to say that Castelli has compromised on fit and support. The Rosso Corsa offers gentle support and a comfortable fit. In particular, the cross straps are Giro 3, the same soft, stretchy material and seamless design used in Castelli's top-of-the-line bibs. As a result, you get less stress and fatigue on your shoulders and trapezius muscles on a long, demanding ride.

The Castelli Rosso Corsa Light Bra is available in either Black or White. The bra works best for A/B cups, and comes in five sizes according to the measurement around the rib cage under the bust: X-Small 26-28in, Small 29-30in, Medium 30-32in, Large 32-34in and X-Large 34-36in.

  • Smooth, seamless Giro2 cross-straps deliver consistent support without digging or binding
  • Side tulle mesh inserts enhance breathability
  • Ideal for A/B cups

  • Seamless Giro2 cross straps
  • Tulle mesh side inserts
  • Moderate support
  • Ideal for A/B cups
Tech SpecsSize
Tech Specs
Recommended Use
fitness, cycling
Manufacturer Warranty
1 year


Women's Cycling Apparel












































Note: Castelli has a "Euro" slimmer fit. We suggest ordering at least one size larger than your normal US size.
How to Measure:
For best results, take measurements over your underwear.
Measure under your arms, around the fullest part of your chest.
Natural Waist:
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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Best Sports Bra for Cycling Ever!

  • Fit: True to size
  • Size Bought: Medium

Product is true to size and feels great. Well, actually, you don't really feel it at all which is kind of the point. I'm ready to buy more and stock up. Thank you, Castelli!

Recommend it

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

This is a great cycling bra - it provides some support but feels like you don’t have one on. Okay, maybe that last part is an overstatement, but it is really lightweight, not binding, breathable, and has very few seams. The white color is not completely opaque, but it has a double layer of fabric across the front which provides reasonable coverage.

Excellent cycling bra

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

This bra is excellent for cycling on hot days. The mesh panels allow air to flow, and it is extremely comfortable, due to the wide shoulder straps made of a thin, silky material. The only part of the bra I actually feel when riding is the front band. The fit is consistent with other Castelli products I own in a small. I wear a bra size 34A, ordered both a small and medium of the Castelli bra and found the right fit in the small.

Tight Rib Cage Band & Thin Frontal Cover

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

My comments are based on being a 32B, middle-aged, reasonably slim body. I ordered small size and found the ribcage band noticeably snug bordering on too snug and somewhat discomforting on the back. For someone who is modest, the material where cups would be is very thin and any physical reactions to cool summer mornings will be noticeable to all. The wide shoulder straps are super comfortable. I would have exchanged for a medium, but was turned off by the lack of modesty coverage on the front. It does feel like a compression bra which I found not too strong, but that is a personal, subjective opinion.

Runs small; returned

  • Fit: Runs small
  • Size Bought: medium

Wife really wanted to like this bra...straps...fabric...weight...all was perfect. She is a 34B & ordered a Medium, straps, bottom band all fit perfect. The problem was that the "cups" were so confining she felt she was in a corset from the 1700's that for the first time in her adult life produced cleavage.

Most comfortable bra I ride with

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

Amazingly comfortable. Wore for a 180 mile 2 day ride. I range (depending on brand) from a 32-34D. I got a small based on the band size. Was a little tight but I assume it will stretch over time. Not uncomfortable tight - just left a band mark. The ladies stay tucked in okay and it works more like a compression bra in the front that I like for cycling. I am ordering 2 more and one is going to be a medium just to see the difference with the cup size.

Best cycling bra ever

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

The wide, thin, soft bands are the best. No more jogging bras! This thing is so comfortable that I'll use it as a regular bra in summer.

Avg. ride time: 40m per week
  • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.

Comfortable Bra

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

I am usually 36B so I bought a Medium and it fits perfect, it is very comfortable so you can forget that you are wearing it even after riding more than 5 hours.
The downside is that It does not have pads.

Avg. ride time: 7h 40m per week
  • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.

Really Comfortable

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

My chest measures 33" and I ordered a size small. It's a bit hard to get on but very comfortable once in place. I'm probably between a small and medium so if I get another one, I may try to size up one.

I would not, the Medium is too big for me wish I had a small :)

Thanks for the "heads up" HippieFairy. I'll stick with the small.

Are there any cyclists out there wearing...

Are there any cyclists out there wearing this w/ a C cup? If so, were you adequately supported and covered?

Best Answer

I'm a 32D and I bought both a Small and Medium. I ended up returning the M as it felt too loose in the band, and did not offer enough support while riding, especially when going over bumpy road. The Small fits perfect for me.

Seems comfy, but doesn't small A-cup

  • Familiarity: I returned this product before using it

I ordered a small. It looks like it would be a really nice product, but I am a smaller A-cup and it is a little loose in the cups area. If you're a larger A-cup or above, you'll be fine.

I wear mine every ride

  • Familiarity: I've put it through the wringer

I'm ordering a second one of these. It is so comfy. The flat straps over the shoulders practically disappear, and the chest band is not tight. (I leave that to the heart monitor band!) There is not a lot of support, but enough to keep things in place when going in for that cup of coffee. When riding, how much support do you really need, anyway?

As to size, I'm between a small and a medium, I think. I went with the medium because I wanted to maximize comfort. Maybe if I had gotten a small, it would feel tighter and more supportive. But, I'm sticking with Medium in the order I'm placing now.

Love it!


    According to the sizing chart on the site, I should be S or M. I ordered one of each size and both were small.
    So I'll ask now an L, because it seems an excellent product and I want to try.
    I think the sizing chart needs to be revised.

    Did the 'L' ever work out?

    I wanted to get one of these as well, but according to the chart, I would need a XL, they might not work for me if they're running that small...

    Awesome Bra! :)

      I put this bra on and felt like I wasn't even wearing a is seriously that comfortable. Riding with this bra on was completely wonderful. I felt no weight in my chest and no tension in my shoulders from the straps. I didn't even really feel the straps at all. We're given so many reasons why we have certain pains but I've never had anyone suggest wearing the wrong bra while cycling was causing me to have some pain around my neck and shoulders. After wearing this just once I can tell that my bra was the reason to the problems and this bra was perfect the solution. I'm a 32 B and the small fits perfectly for me. I just wish I had lots more money so I could buy more.

      Thanks for the specific detail on your size and the fit for you. Your review sold me so I can feel confident in my purchase now!

      Avg. ride time: 6h 6m per week
      • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.


        Very comfortable straps and fabric. I am ordering another one. Seems true to size. I bought the small and it's a little tight getting on but really comfortable once on.