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Mavic Cosmic Pro Jersey - Short-Sleeve - Men's
Sale $64.97 - $103.96 $129.95 50% Off

Item # MAV00CF

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  • Black/Racing Red, S ($64.97)
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Item # MAV00CF


Ride harder, stay cooler.

Standard jerseys soak you in a sweaty, sauna-like mess when it's 100 degrees and radiating heat like some fiery inferno. Realizing this, the Mavic Men's Cosmic Pro Jersey features the heat-activated cooling of 37.5 Technology for proper thermo-regulation. This cooling technology places activated carbon particles directly into the jersey's polyester knit fabric. These permanently embedded particles wick moisture up to five times faster than traditional polyester, speeding up the evaporative cooling process. Ultimately, this technology gives you a cooling advantage when you're training and racing through the dog days of summer.

Developed with extensive input from the riders of JLT Condor, the Cosmic Pro Jersey is the lightest jersey ever produced by Mavic, tipping the scales at a feathery 130 grams. Not only is it extremely lightweight, but the Cosmic Pro also protects your shoulders and back from blistering UV rays. Pro-fit construction eliminates flapping when you're pushing along at a stunningly high cadence. Other road-savvy features include three ergonomic rear pockets with headphone routing and a silicone elastic gripper for a secure fit in the drops.

Tech Specs

[body] polyester knit with 37.5 Technology (100% polyester), [shoulders] 84% polyester, 16% elastane, [insert] 43% polyester, 57% recycled polyester
Pro Fit (form-fitting)
3 ergonomic rear (1 with headphone routing)
Recommended Use:
Manufacturer Warranty:
2 years

Size Chart


Men's Cycling Apparel

32.7 - 34.3in

(83 - 87cm)

34.6 - 36.2in

(88 - 92cm)

36.6 - 37.8in

(93 - 96cm)

38.6 - 40.2in

(98 - 102cm)

40.6 - 42.5in

(103 - 108cm)

42.9 - 44.9in

(109 - 114cm)

45.3 - 47.2in

(115 - 120cm)


28 - 29.5in

(71 - 75cm)

29.9 - 31.5in

(76 - 80cm)

31.9 - 33.1in

(81 - 84cm)

33.5 - 35.4in

(85 - 90cm)

35.8 - 37.8in

(91 - 96cm)

38.2 - 40.2in

(97 - 102cm)

40.6 - 42.5in

(103 - 108cm)


33.5 - 35in

(85 - 89cm)

35.4 - 37in

(90 - 94cm)

37.4 - 38.6in

(95 - 98cm)

39 - 40.9in

(99 - 104cm)

41.3 - 43.3in

(105 - 110cm)

43.7 - 45.7in

(111 - 116cm)

46.1 - 48in

(117 - 122cm)

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.

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Fantastic jersey, sizes a little small

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

I love this jersey (and almost everything else Mavic makes). Per the recommendations, I sized up 1-2 sizes to XXL. I have ridden several hundred miles in this and my matching bib. The black is *slightly* see-through, but that is what allows the piece to breathe. Thanks to Gearhead Justin for the great recommendation!

Followed Sizing Chart, Fit is Too Long

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

I am not going to comment on the material and breathability and all that stuff, because to me, that doesn't really matter, as long as it fits well. So, what I am going to talk about is the fit.

I followed the sizing chart, measuring the various parts of my chest/torso believing that I would get a jersey with a perfect fit. Unfortunately, it was anything but perfect...for the large size, that is. Basically, the only part of the jersey that fit on my body was the arms.

The fit in the torso area is just way too big! It bunches on the sides when worn naturally, and when you load it up with your gear, it sags down way too low. Would have gone with a medium had I known the large was going to be a mini-skirt. Now according to Mavic's website, this particular jersey is fitted at 98-102, which is 38.5 - 40.15 inches. I figured with the stretch, I could get away with it since my chest is approximately 42 inches. Yes, the chest does fit, but the lower part of the jersey is just too long. But I did find a work-around. I used a paperclip to cinch the extra material, and I must say it worked quite well. As you can see in the photo, the pockets are resting parallel with my hips! So, in the riding position, the pockets are resting on the top of my hips, not the small of my back where I expect them to be.

Therefore, when out of the saddle or sprinting, I've got gear swashing about. If the jersey is designed to fit like that, then I may need to look elsewhere.

Mavic jerseys seem to be hit or miss for me, this being like my 5th Mavic jersey. I just wish they would perhaps include the length of the jersey in the size chart...

*You know what, now looking at the sizing chart provided on Competive Cyclist and comparing that to the one on Mavic's website, the S, M, L, etc. are off by 1 size. I will definitely keep that in mind for the next jersey I buy.

Followed Sizing Chart, Fit is Too Long

Comfy for all but the hottest days.

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

This jersey isn't like the pure climbers' jerseys I've had in the past. The front of the jersey is made with a lighter more breathable fabric like what you'd expect from a climber's jersey. The back and shoulders are a slightly thicker fabric. At first I thought this might be a problem because it's your back that takes the brunt of the heat from the sun and it's your upper back where you radiate most of the heat from your core. But given that the front was lighter it allowed more air to cool me off while moving and the heat hasn't been a problem from the back even in full sun. Consequently, with the slightly thicker material on the back and shoulders I didn't end up with a sunburn under my jersey à la Chris Froome. Google it; you'll see what I mean.

The collar seems like it sits slightly higher than what's currently en vogue right now, but it doesn't annoy. Sleeves still accommodate a cyclist's skinny arms, though they are a bit bigger than what you'd find on something like a Castelli or Sportful race jersey. The raw cut sleeves do seem to have enough stretch to accommodate bigger arms. The length is perfect for spending the day in the drops.

The pockets are easy to access, however the left and right pockets are cut at an angle and may make it harder to carry a lot of stuff back there. They do stretch well enough to hold most anything that you'd expect to reasonably put in a race cut jersey.

As far as fit goes, close fitting like most euro brands. At 5'9" with a 40" chest and 34" waist I fall right at the upper end of a medium. I tried both both the medium and large and went with the large. I would probably wear the medium for race days, but the large is still very close fitting with slightly more stretch. There is no bunching. It's a euro fit but not as tight as an Italian fit. A note on the arms: this jersey isn't cut to accommodate the riding position like Castelli's Corsa Rossa line or anything Assos. It lays "correctly" when you're standing and rolls a bit when in the drops, but the fabric stretches well enough it's not a big deal.

All-in-all, it's a great jersey for the price. I would buy another.