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Item # AAS002A

Formed to fit.

Since its inception, Assos has been the leading innovator in cycling apparel. Racking up patent after patent, while continually developing new textiles, Assos has never been content with new designs just for the sake of new graphics. That's why we're excited to introduce the new SS.Uno_s7 Jersey. The SS.Uno features textiles, patterns, and technologies that make it the best fitting jersey on the market. The SS.Uno jersey is a must for anyone looking for the best apparel that money can buy.

The Assos SS.Uno is constructed from four textiles, 15 patterns, and 12 components. The short sleeve jersey also features the new custom Assos fabric, Type.vX121, on the front and rear panels. Type .vX121 is designed for the SS.Uno. It's constructed from a two- surface, triple microfiber filament that forms a single-layer fabric with unique push/pull characteristics. The proprietary textile performs multiple roles at once; keeping you dry, cool, comfortable, and blocked from the wind. Type .vX121 is not only incredibly light, but it dries 34% faster than the previous generation Assos Plasma fabric.

Building off of the legendary mod.Uni jersey, the SS.Uno reflects years of constant evolution towards the goal of the perfect jersey. Features like the ultra-thin spandex shoulder panels are shared today with the SS.Uno; only Assos has now perfected the fit. The SS.Uno features a pre-shaped anatomical fit that "clicks-on" once zipped. To allow free movement, Assos has tailored the short sleeve jersey to move with your body through any cycling position.

Thanks to the limited stretch of the back panel, no stabilizer panel is needed on the rear of the jersey. The SS.Uno has three rear pockets, with a fourth zip side pocket for MP3 players. The entire jersey has a permanent antibacterial treatment to protect against material degradation from sweat. The jersey also offers UV 50+ protection, and has reflective edges on the rear pockets.

The Assos SS.Uno_s7 Jersey is available in six sizes from Small to TIR and in the colors Black Volkanga, Blue Calypso, Red Swiss, White Panther, and Yellow Volt.

Tech Specs

[paneling] ASSOS Type.v X121
form fit
spring, summer
3 rear and a single zip
Recommended Use:
road cycling & racing
Manufacturer Warranty:
limited lifetime

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.

Reviews & Community


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    I haven't completely drunk the Assos kool-aide. The pricing is sometimes absurd -even insulting (campionissimo bibshorts). The marketing often over the top. And some pieces in the collection don't quite achieve the high standard of the sublime bib shorts/tights, jackets, and jerseys (e.g., the gloves).


    No one in cycling designs and manufactures cycling clothing quite like Assos. The sophistication of the textiles (especially) and the construction is way beyond what anyone else is doing.

    The Assos SS.Uno_s7 jersey features: Amazing textiles. Amazing contoured fit. And fantastic looks. It is a great warm weather jersey. And a great value (for Assos) at this price!!

    Fit: Like all Assos tops (except Mille), this jersey is designed and tailored for fit/athletic riders. It is meant to fit snug for proper aerodynamics and no drag.

    Sizing: True to size (but form-fit).

    I'm 5'10 and 185. The size L fit me perfect in the length, front & back. A little snug in the abdomen ( because I need to lose 20) and because it is meant to be (aerodynamics). At my height and weight, I'm in between a L and XL here. Time to ride the bike more. ;-)

    Avg. ride time: 6h 52m per week
    • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.

    Note for TALL guys -- this is NOT a tall

    • Familiarity: I returned this product before using it

    I am 6'8", 200 lb. When you filter men's short sleeve jerseys on "tall" sizes, Assos comes up. So I purchased both the XL and XLG sizes. Both were a full inch (or more) shorter than the Pearl Izumi Elite LTD Climbers Jersey. FWIW, the XL fit well in the body; XLG was a bit large

    The photos show an S5 Jersey, but it is advertised as an S7. Which is correct?

    Best Answer

    I I just bought two of these, they're s7. The graphic in the back does look like s5.uno but it's actually sS.uno.

    Excellent jersey

    • Familiarity: I've used it several times

    Just a tip on sizing - I am 5'8'' and 165lb muscular build. Large fits like a second skin, and its length is perfect as well.

    Avg. ride time: 9h 14m per week
    • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.

    Typical Assos - Great

    • Familiarity: I've used it several times

    I can confirm all the positives that others have said...so I will not repeat them.
    I will provide additional info on sizing. I am 6'2" and 165 lbs. Typical skinny armed/shoulder/chest cyclist build. I wear Assos XL bib shorts and the fits perfect. I wear an XL in Castelli jerseys. The first Assos jersey I tried was an XL. It was too baggy all the way around (I like jerseys to be form fitting). Not 'bad' baggy but it would have certainly fluttered in the wind. Exchanged it for a Large. The large fit much better. I was a little concerned about the front being too short but in typical Assos vernacular, once I was on the bike it was just right. The back had plenty of length.
    Like others I carry things in my pockets - extra clothes, food, water bottles, etc. The pockets are nice a deep as well as hold things securely due to whatever fabric magic they have going on.
    It is a pricey piece of clothing. But the few other Assos pieces I have last for years without breaking down allowing you to spread the cost over years. Though I will say that I do not plan on wearing this jersey when mountain biking. North East trails have branches/bushes/etc that like to snag and rip clothing.

    Better in action than I thought

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

    I am not the shape of the normal cyclist or triathlete and I carry a great deal in my pockets. Most jersey's that fit in the chest and shoulders are sliding around my waist so bad that I can't find my pockets. I had some concern before I rode that this was going to be the case, but was pleseantly surprised to find that it moved very little. I have to carry diabetic supplies and a bunch of gels in case of emergency, the grippers on the inside of the jersey, kept everything in place and I did not have to suffer with too tight up top to get it!

    Is the fit for this similar to castelli? I wear a xl for castelli and my chest measures 40inches.

    Your height and weight would help me answer your question best. But based on the info you provided buy the large in this Assos jersey.

    Excellent performance jersey

      Since receiving this jersey I have used it on two rides: A 2 hour hill workout and a longer 4 hour tempo ride. Both rides were in approximately 80-83*F weather, and sunny. As a basis for comparison, I have an SS.13 jersey that I have been using for the past 3 or 4 years. I am 5'9" 167lbs, and I wear a Large in both jerseys.

      Fit: The Uno does not provide as much compression as the SS.13 but still features a fairly tight race fit. This is certainly not a "club fit" jersey. It hugs your body snugly, and Assos' signature AEPD cut pulls at you when standing, but really snaps into place in the riding position. The fit truly clicks in when in the drops. The sleeve length is neither too long nor too short, and comfortably grips your arms without being overly snug. The close fit also prevents the jersey from flapping around when descending.

      Material: The primary fabric of the jersey is highly breathable and has excellent moisture wicking properties, though is not quite as luxurious feeling as that of the SS.13. Compared to the SS.13, it leaves a little to be desired in terms of heat dissipation, but is not far off. The mesh panels on the underarms are a welcome addition and help to keep things dry. The the less elastic back panel is only slightly less stable than the back panel of the SS.13 which has the inelastic strip in the middle. All this means is that you have to be a bit more judicious with the way you pack your pockets.

      Storage: The pockets (including the zippered pocket) on this jersey are fairly large (larger than the SS.13 pockets), making it ideal for long days in the saddle where you may need to hold more food, or an extra layer. The size of the pockets mean that the opening is a little higher, and can be slightly difficult to reach into when at speed but not in a serious way.

      Overall, this is a great jersey for training rides of any length in warm to hot weather. For racing, the SS.13 is still the winner for me, but not by a tremendous margin.