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Cool is the new fast.

You've been riding at 500 watts seemingly forever, and the sun's power makes you feel like an ant under a magnifying glass. While most jerseys can withstand one of these variables, the combination of exertion and external heat will usually leave you cooked. Hot weather jerseys do exist for those willing to bare a great deal of skin to the peloton, but none combine a normal aesthetic with race-day aerodynamic features. None, that is, except the Louis Garneau Course Superleggera Jersey.

Louis Garneau designed the Course Superleggera jersey to be the ultimate race piece for hot weather. However, to achieve this lofty ambition, Garneau was forced to create a complex design that remains simple on the eyes. Easier said than done. So, three fabrics were used in its construction, along with a sophisticated material treatment. Starting at the body of the jersey, Garneau knew that the bulk of construction had to be lightweight, malleable, and breathable. This means that Mondo was the obvious choice for its composition. Made from a featherweight, multi-filament polyester, Mondo's knit is porous for breathability and for a high level of stretch that aids in both comfort and aerodynamics.

At the chest, shoulders, and sleeves, the Garneau went to great lengths to account for the most cumbersome variable of comfort -- heat control. Sure, the aforementioned fabric is breathable, but Garneau still added its Mesh 1001 material for a few reasons. First, it enhances the jersey's next-to-skin fit and comfort with its stretchy, microfiber composition. Second, it's been treated to wick moisture away rapidly. And lastly, its open mesh design keeps you dry while thoroughly ventilating your core. Going a step beyond, Garneau also treated the body of the jersey with its Coldblack finish. This finish permits the sun's heat to be reflected away from the jersey instead of absorbing it like most fabrics. So, you can ride on the rivet during summer races without running the risk of overheating.

To secure the fit of the Course Superleggera jersey, Garneau has taken a multi-step approach. The shoulders have been pre-shaped for added in comfort within the cycling position. At the rear hem, Garneau placed a wide signature silicone gripper that prevents shifting without adding any irritating compression. For the arms, Garneau laser-finished the hems, not only for comfort, but for enhanced aerodynamics as well. This has been further enhanced through the cuffs' Lazer Rev fabric. With a 22% spandex composition, this material provides a certified, compression-level support that aids in the reduction of lactic acid buildup, and the reduction of muscle fatigue.

Garneau has also included three rear angled pockets for easy-access storage, a secured multimedia pocket with internal cable routing channels, and reflective accents to increase your visibility to motorists in low-light conditions.

The Louis Garneau Course Superleggera Jersey is available in five sizes from Small to XX-Large and in the colors Black and White.

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Here's what others have to say...

5 5


  • Gender: Male
  • Familiarity: I've put it through the wringer

I bike in Hawaii so 80-95 degree rides all the time. I tried the LG superleggera, the LG course race and Castelli's climber's jersey. First off, the fit and the paneling between this and the LG course race are almost identical. Where the course race has that smooth material everywhere, this has that extra bit of mesh up top, and if you want a warm weather jersey, that extra bit helps. The castelli climber's jersey breathes very well, prob just as well as this one, but it has a very odd fit, sort of loose in the mid section no matter what size you get, and it has a big plastic (nylon?) zipper which bunches so the jersey doesn't sit flat. The superleggera and the course race don't have that problem at all. Very proportioned fit. This is my favorite jersey of the 5 I own and I will probably order another one as a backup.

I'm 5'10.5

Responded on

Not sure why the review got cut off but the sizing info should have read:
I'm 5'10.5", 162#, 39.5" chest, 33" waist. I tried a M and a L and in the end went with the L. The Medium was a touch on the too tight side, whereas the L was still comfortable but still fit nicely i.e., not a club fit but still a race fit.

Responded on

I had the same experience in regards to this jersey and the castelli climbers jersey. The Castelli seemed to be super tight up top and very baggy in the mid section. The LG SG was cut very tight though. I am usually a medium top unless its very race cut. But this is a large on me and still a bit too tight.........I just took this as a sign I needed to lose a few pounds to wear this kit. I am 5'11" 42 chest 32 waist and 176 pounds

5 5

Worth the Price

  • Familiarity: I've put it through the wringer

Excellent hot weather jersey. Far superior to Castelli's Climber's Jersey.

5 5

Awesome Jersey

  • Familiarity: I've used it several times

I used this jersey on a century ride and it was perfect. It had just enough venting but was still solid to prevent sunburn

5 5

My Favorite warm weather jersey

  • Familiarity: I've put it through the wringer

This jersey is great when the temps rise and the sun is out. Make sure you wear sunscreen on a sunny day since the jersey will not protect you against UV rays. It's a super-lightweight fabric, almost like a mesh, that keeps you very cool on hot rides. When you're done riding head down to the local club for disco.

My favorite details of this piece are the flat-lock zipper and the long lazer-cut arm band. This arm band goes a little longer than normal, about halfway down my upper arm. So pro.

Bottom line: very comfortable warm weather jersey, looks pro.

The fit is Euro but made for the Euro Pro's, so expect it to fit a size smaller than compared to American brands.

If you get this piece you must match it with the Bib shorts:

My Favorite warm weather jersey