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Item # GIO0450 Past Season Colors

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Item # GIO0450

In search of the grail.

The EXO System jersey is Giordana’s attempt at the ultimate cycling jersey—a balanced blend of comfort, support, and aerodynamics. In pursuit of this goal, Giordana designed the EXO with five different fabrics, strategically located to provide that balance.

The front panel is made with Giordana-exclusive A.I. One. This is a two-filament fabric that creates air pockets between the skin and the material to provide a cooling sensation. A.I. One also provides omni-directional stretch for a perfect fit that won’t bunch up.

The fabric used at the sleeves and shoulders is Asteria 2.0, which has the highest threads-per-square-centimeter ratio in the cycling industry. Not only is the fabric incredibly soft to the touch, it provides support (not quite compression, but similar) to your upper arms, which absorbs most of the road vibration.

At the rear, Giordana uses Host Carbon—the same fabric used in its FormaRed Carbon pieces. This is an extremely breathable honeycomb knit fabric that also provides omni-directional stretch for a perfect fit and near-perfect aerodynamics.

  • A.I. One front panel
  • Asteria 2.0 shoulders and sleeves
  • Host Carbon cuffs and waistband
  • LoPro 30 pocket, underarms, ventilation
  • No-profile integrated collar
  • Three rear pockets with aero flaps

Tech Specs

[front panel] A.i. One, [shoulders and sleeves] Asteria 2.0, [rear panels] Host Carbon, [cuffs and waistband] LoPro 30, [pocket, underarms, and venilation] Kite
full-length camlock
UPF Rating:
3 rear
Recommended Use:
road cycling
Manufacturer Warranty:
1 year

Size chart


Men's Cycling Apparel

25 - 28in

(63.5 - 71cm)

28 - 32in

(71 - 81cm)

32 - 36in

(81 - 91cm)

36 - 40in

(91 - 101.5cm)

40 - 44in

(101.5 - 112cm)


37 - 38in

(94 - 96.5cm)

38 - 39in

(96.5 - 99cm)

40 - 42in

(101.5 - 106.5cm)

43 - 44in

(109 - 112cm)

45 - 46in

(114 - 117cm)

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.

Reviews & Community


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Avg. ride time: 2h 40m per week
  • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.

My favorite Jersey

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

This is by far my favorite Jersey. As said before it is euro cut, so you do need to size up. I wear a meduim in typical American cut stuff, but this jersey fits perfectly in a large (still very snug race fit). I have both a black and a white one. Both look great and have not faded after numerous washes. One of my favorite parts of the jersey is the low-to-non-existent collar. The jersey is aero cut and is well ventilated. The rear pocket flaps can be irritating at time, but it does keep your stuff from falling out. I don't use any type of saddle bag and I stuff a ton of stuff in my jersey pockets, so I guess it does help if you're amad jersey packer like me.

Considering buying another before they are all snapped up. They are a steal at this price.

Racers only need apply.

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

This is a jersey for going fast, and it makes me feel fast just putting it on. As with other reviewers, I'm fairly broad shouldered, so it fits tight up top and i sized up from my usual Giordana size. (Large to x-large.) I was worried about the kind of aggressive aesthetics, but it's actually very subtle in person. I got the white, and it looks sharp with a pair of black bibs.

I purchased a white one as well. It is well made and highly functional in warm weather, especially with the sun protection. I purchased a Large....fits well on 5'-11", 40 in chest, 174 lbs.; however, fits like my tri tops, so it is body fit and feels fast as Rob stated. The compression feel is something I like, even in the arms. If does feel different from my formared carbon jersey in Large. Length at back of jersey is identical to formared jersey, so comment below should be disregarded. Jersey is very well made and bought to ride for a month in Victoria, Au this winter. It is a fabulous jersey and even more comfortable than my formared which I used daily for my ride across the northern US last summer.
If you like athletic wear, buy it. If you like a sport/recreational fit to accommodate extra belly pounds, don't buy it.

Quality that's what you'd expect.

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

The quality of the piece is outstanding. Great attention to detail. The jersey is made for warm/hot weather. No tall collar. Very breathable. And it's lightweight while not being flimsy. Paired with Giordana's Forma Red Bib Shorts and, well, you're good to go!

Small Strange Fit

  • Familiarity: I returned this product before using it
  • Fit: Runs small
  • Size Bought: M then L

First of all I WISH this fit right, the jersey is very high quality
I'm 5'8" 160, wider shoulders. Normally i'm medium, medium was MUCH too tight.
Tried large, still much too tight.
Seems as if this would only fit people with very slim arms and narrow shoulders.
Also it seems cut to be bending over in the saddle, so wearing it when upright on or off bike is uncomfortable and it pulls your whole upper body forward.
Even if it fit perfect i wouldnt pay full price $250, but the $100 sale price would be debatably worth it if it fit

Best feeling jersey I have owned.

  • Fit: Runs small
  • Size Bought: XL

Wore it for the first time today and it is the best feeling jersey I have ever owned. I'm 5'8", 155lbs. Bought XL and it is a good fit.

Avg. ride time: 3h 1m per week
  • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.

Great Summer Jersey

  • Fit: Runs small
  • Size Bought: Large

Fits slim, cooling on those 100+ days, looks great. Bought it for my yearly goal ride - Climb to Kaiser. As for fit, think Castelli.

Expected more

  • Familiarity: I've put it through the wringer

I have used Giordana for several years now and would put the FRC line up against anything, truly great stuff. So when the EXO came out I was excited to see what improvements had been made. The arms are snug, long, and aero, no complaints there. The body material is comfortable but I was expecting a snug race fit, like a second skin, not the case here it tends to bunch up. It is also very long in the torso, much longer than the FRC jerseys. Hanging down almost mid rear-end with a couple things in the pockets. They also put a "flap" over the top of the pockets, I suppose it helps keep things in but it also makes it hard to get at items. Branded as a game changer, especially for the cost, I expected better. I'll stick with the FRC line. The bibs are a different story, but that's a different review, they are however fantastic.

Avg. ride time: 0m per week
  • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.

Perfect Jersey

  • Familiarity: I've put it through the wringer

By far the best jersey I've ever owned. The fit is great. Tight and still long enough. I'm 6' 1" 185lbs and I wear a large. Other jerseys just feel cheap compared to the exo. Well worth the money.

Too tight in the arms for my size

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

Used it on 2 rides. The shirt fabric is great but I don't like the elastic on the arms at all. It is way to tight for my body type (athletic, 6'-3"' 195lbs). I bought size XXL, and with other brands I use that size would be ok on chest/arms, normally wide on the waist.

They should use a more forgiving elastic for the arms. No need to have it so tight for an XXL size.

Avg. ride time: 41m per week
  • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.


    I just picked up a pair of these and I'm very impressed! I didn't think Giordana could do better than the FRC but they somehow managed. I have 5 rides on them now and its the first jersey I reach for in my drawer. This is the first jersey I've ever worn that I immediately wash when I get home so it will be ready for the next ride. Guess its time for another pair.

    Fit is American, but slim with a wide chest. I'm normally Medium to Large and the Medium is plenty big.

    I hate to say it, but my Assos shorts may now be set aside for trainer rides.