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Assos Ss.rallytrekkingJersey_evo7 with Base Layer - Men's


Item # AAS004B

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Item # AAS004B

Rally on.

The Ss.rallytrekkingJersey with Base Layer represents the absolute pinnacle of Assos’ mountain jersey technology. The rally trekking jersey is light, anatomically pre-shaped and protective. This moisture-wicking top layer is specifically designed to keep you cool when partnered with the included Assos Skinfoil baselayer, which uses moisture to either insulate or cool, depending on outside temperatures.

For its rally trekking jersey, Assos uses a synthetic stretch fabric. This smooth polyester material works to transfer moisture at varying rates. When your body is hot, and your perspiration levels are high, the material reacts by accelerating moisture transfer from your skin to the fabric's surface, where it dries quickly. Inversely, when your body cools down, the opposite results, where the evaporation process slows down, using body moisture as a means of retaining warmth.

Assos includes the appropriately sized skinFoil S7 baselayer with the Ss.rally trekking jersey. This baselayer perfectly complements the jersey. Not only does it augment the jersey’s temperature regulation system, but it adds protection from the sun’s harmful UV rays.

The jersey was made with a regular, body-mimicking fit that follows the contours of your torso. Of course, this jersey, like all Assos jerseys, has been designed to accommodate the body within the cycling position. Accordingly, you'll find that the fit feels tight and oddly contoured while standing. However, the moment that you stretch to the hoods or get into the drops, you'll feel that signature Assos "click," and your ride will be guaranteed to be absent of any bunching, chafing, or pinching.

The back of the jersey is made with an open mesh, which acts as a heat exhaust during hot-weather rides. Because of this, however, it provides less sun protection. Again, Assos urges you to wear this jersey with the included baselayer during rides where the sun is a factor.

Tech Specs

[jersey] 84% nylon, 12% elastane, 4% polyester, [baselayer] 85% nylon, 15% polyester
3 rear
Recommended Use:
mountain biking
Manufacturer Warranty:

Size chart


Men's Apparel
Leg & Knee Warmers 0 I II
Height 4ft 11in - 5ft 2in
(150 - 159cm)
5ft 3in - 5ft 6in
(160 - 169cm)
5ft 7in - 5ft 10in
(170 - 179cm)
5ft 11in - 6ft 1in
(180 - 185cm)
6ft 1in - 6ft 3in
(186 - 190cm)
6ft 3in - 6ft 5in+
(191 - 195cm+)
XLG but wider
Arm Warmers 0 I II
Chest 35.4in
46.5+ in
How to Measure:
For best results, take measurements over your underwear.
Measure around the widest part of your chest.

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Avg. ride time: 4h 33m per week
  • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.

Not the normal Assos fit.

  • Familiarity: I returned this product before using it

I love Assos. Best bibs and jerseys, no question but this jersey is weird. Fits like club fit stuff. Returning it for the Centos jersey.