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  • Castelli - Prologo 4 Full-Zip Jersey - Men's -

Castelli Prologo 4 Full-Zip Jersey - Men's

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12 Reviews


Lifting a classic to a new level.

The Prologo 4 Full-Zip Jersey combines Castelli’s classic designs with technical innovation to create a breathable, quick-drying jersey with a fit that will leave you inspired to ride. For the Prologo 4, Castelli used its new anti-moisture Stratus fabric, featuring a 100% polyester inner layer that pulls sweat from the skin and transfers it to the thin, microfiber outer layer. The Prosecco treatment disperses moisture once it surfaces, enhancing evaporation and keeping the jersey airy and light on your skin. To further improve breathability, the Prologo 4’s side panels and lower back are mesh, and it has a full-length camlock zipper so you can dump heat on the fly. The Prologo also has three rear pockets, and a reflective zipper pocket, to ensure that your ride essentials are safe and secure.

  • Anti-moisture Stratus fabric (100% polyester inner layer, micro-fiber outer layer)
  • Prosecco treatment
  • Mesh side panels and lower back
  • Full-length camlock zipper
  • Three rear pockets and a fourth reflective zipper pocket
  • Item #CST005W
  • Reviews
  • Q & A

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Good Jersey - Typical Castelli

  • Familiarity: I've used it once or twice and have initial impressions
  • Fit: True to size
  • Size Bought: Large
  • Height: 6'0"
  • Weight: 170lbs

Good Jersey - fits like other Castelli products and has a good feel. First impressions are really good!

Castelli products are made for racer types who like their products to fit tight and snug. Their stuff fits 1 of 2 ways - Small or Extra Small. As long as you know that going in there will not be a problem. Don't ding Castelli for making products fit like they are supposed to. Work with the CC guys and they will get you properly sized or a better fitting brand.

Great jersey

  • Familiarity: I've put it through the wringer
  • Fit: Runs small
  • Size Bought: Medium
  • Height: 5'10"
  • Weight: 155lbs

This is a solid jersey, and even better if you pick it up on sale. Some reviewers mentioned that it felt tight in the chest, and it does while standing up straight. Once you're on the bike, though, it fits perfectly. I go up one size...Castelli tends to run small.


  • Familiarity: I've put it through the wringer
  • Fit: True to size
  • Size Bought: Small
  • Height: 5'6"
  • Weight: 163lbs

This jersey has the understated look of a classic jersey from before the color explosion of the 90's. Every time I wear it--paired with all black shorts as per The Rules--I get numerous comments about how great the whole kit looks. And that's the key: as long as you don't want to be flashy this jersey will work for you. It has a racing fit, nice and tight but it doesn't make you look like you've squeezed into a sausage skin. Three basic pockets, a wide, durable full zip to make donning and doffing simple. It breathes, it shields you from the sun, it holds enough supplies to allow for day long rides. You really can't ask for much more. It's a great jersey for training and getting big miles in. It's also a great jersey for the unattached racer who doesn't want to look like that tool who shows up to the local B race or group ride in the Swiss Pro National Champion Jersey. And all for the price of a normal name-brand athletic shirt.

Runs small

  • Familiarity: I returned this product before using it
  • Fit: Runs small
  • Size Bought: Large
  • Height: 6'3"
  • Weight: 176lbs

With other brands I use L, I ordered L but it runs small, to me seems like is a jersey for kids

Lime green and not bright yellow

  • Familiarity: I returned this product before using it
  • Fit: True to size
  • Size Bought: medium
  • Height: 5'10"
  • Weight: 164lbs

Most of my clothes are Castelli and I like the brand. I expected this to be bright yellow, but it's close to lime green. Not at all hi-viz or even bright.

Runs way small

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

I wear a medium in every cycling jersey except Castelli. Website said order one size up but the large was still too small. Ended up with an XL. Wow. Once I got the correct size I was not disappointed! The quality is there as usual with Castelli wear. Looks great and the XL fits like a medium, haha. Still quite happy with it.

Great jersey

  • Familiarity: I've put it through the wringer
  • Fit: Runs small
  • Size Bought: Large
  • Height: 5'11"
  • Weight: 175lbs

Jersey fits and looks great. Simple without any frills. I ordered a large up from my normal medium and am glad I did.

far to small sizes not accurate

  • Familiarity: I returned this product before using it
  • Fit: Runs small
  • Size Bought: 3XL
  • Height: 6'
  • Weight: 235lbs

again for Castelli, what a bad advertising 3Xl it's not even large?
sizes should be accurate and you should tell your customers about taking 6 sizes above your normal sizes? can't weir it at all can't even put my arm in it , usually 3XL it's loosen and feet perfectly/
common guys these product are very expensive I would need to send it back and get a refund please or send me a real 3XL?

So close, but one serious deal breaker.

  • Familiarity: I returned this product before using it
  • Fit: True to size
  • Size Bought: XL
  • Height: 5'9"
  • Weight: 180lbs

This jersey is almost awesome. The fit is great, the materials are nice and the construction seems to be high quality. I really liked the simple, tasteful design and the "drive blue" color.

But for reasons that I can't possibly understand, Castelli decided to make the chest logo stripe a transfer instead of sublimated graphics. As soon as I tried it on, it felt like someone had put a strip of duct tape across my chest. This entire strip doesn't stretch at all, and just looks and feels terrible. Also, for a jersey designed to be a breathable summer weight piece, why put a completely unbreathable barrier across the front? I'm sure with further wear this transfer would begin to crack and look even worse.

Bad move, Castelli. Fail. Giving three stars for the overall quality, but honestly I'm tempted to go with one.

Note - "true to size" in this case does mean race fit, which is what I was looking for. If the chest was allowed to stretch even a little bit, it would have been perfect. So disappointing.