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Assos iJ.shaqUno Jacket

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Item # AAS0205 Past Season Colors

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  • White Panther, XS ($169.50)
  • White Panther, S ($169.50)
  • White Panther, XLG ($169.50)
  • Black Volkanga, S ($169.50)
  • Black Volkanga, XS ($169.50)
  • Black Volkanga, M ($169.50)
  • Black Volkanga, L ($169.50)
  • Black Volkanga, XL ($169.50)
  • Black Volkanga, XLG ($169.50)
  • Red Swiss, S ($169.50)
  • Red Swiss, M ($169.50)
  • Red Swiss, L ($169.50)
  • Red Swiss, XLG ($169.50)
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Item # AAS0205

Unleash your little warrior.

For more than 10 years, Assos has been the proud sponsor of the Swiss Cycling Federation. And in this time, it's taken the responsibility of supporting the development of burgeoning young cyclists. As a result, Assos' Uno line of jackets was born. According to Assos, this line creates a "welcome, thank you" price-point that enables those cutting their teeth in the field to experience total protection and comfort. For this reason, the iJ.shaqUno Jacket received its namesake, as "shaq" is short for little warrior in Arabic. And while Assos admits that iJ.shaqUno isn't the cheapest jacket in the world, it could very well be the last one that you'll ever need.

Assos designed the iJ.shaqUno jacket to be worn with only a skinFoil body insulator underneath. And when you take into account that this piece falls into its Winter 6 ALS ClimaRange (around 41 to 25 degrees Fahrenheit), you begin to wonder how this is possible from such a thin construction. To start, it took proprietary fabrics that were designed and produced at the Assos Textile Laboratory. Secondly, it incorporated two separate fabrics for two separate purposes.

Assos calls this a "double-face construction." Against the skin, you'll find Assos' venerable RX material, which is a fleecy, bi-elastic fabric that conforms to the body in movement. Essentially, its primary purpose is one of insulation, and its secondary purpose is to efficiently wick moisture away from the skin. Needless to say, RX succeeds at both. The second layer of the construction is there to stave off winds and to act as an evaporation channel for excess moisture. Interestingly, though, these two layers are not bonded. Instead, Assos chose to attach them around the jacket. Accordingly, you're permitted far greater freedom of movement. And going even further with this concept, the two layers are different in size. Essentially, this allows the jacket to create pockets of insulation between the layers, keeping your core temperature thoroughly regulated.

Combining what Assos calls its Advanced Ergonomic Pattern Design (AEPD) racing cut with its cycling-specific body-mapping pattern design, the iJ.shaqUno benefits from the most thought-out design process in the business. Assos is the first to tell you that high-end materials mean nothing if the cut is bad. That's why it's spent a maddening amount of time on two points of study — how the body is shaped, and how it changes throughout the movements of cycling. Accordingly, the AEPD cut is made for the shape of cycling, not standing (just a little something to remember when you try it on). With the iJ.shaqUno, the cut greets the contours of your body and adds a slight compression to aid in muscle recovery and stabilization. It's worth noting that AEPD achieves this without adding a sensation of pressure. Further along these lines, the cuffs use a no-pressure closure system that Assos calls WristWrap. To achieve this gentle grip, Assos integrated them with the fabric of the sleeves instead of placing them inside the hem. Altogether, the characteristics of AEPD literally make the jersey "click" into place for the ultimate in cycling fit.

The Assos iJ.shaqUno Jacket is available in six sizes from Small to TIR and in the colors Black Volkanga and White Panther.

Tech Specs

[next-to-body layer] Assos RX, [outer-layer] 72% polyamide, 15% polyurethane, 13% elastane
Fabric Waterproof Rating:
Fabric Breathability Rating:
highly breathable
not taped
full-length front zipper
Windproof Rating:
3 back
Recommended Use:
cold weather road cycling and 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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Great Jacket

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

I used this with starting temperature of 38 and ending temperature of 46 on a 25 mile ride with wind. What a great jacket. Fits great, feels great and works great. I used a long sleeve "light" CRAFT thermal shirt. I probably could have gotten by with short sleeve undershirt. Purchased this jacket on sale! I would have paid full price. Don't think about it, just buy it. Make sure you size up. I have a more "muscular " build. I usually wear XL in Assos gear. Had to go with XLG.

So disappointed.

  • Fit: Runs small
  • Size Bought: XL

Almost everything I wear when I ride is Assos and has been since I discovered them in the late 90s. I have never experienced such low quality materials from Assos before. The nylon sleeves are similar to a windbreaker bought from the clearance rack at Kmart in the 70s. It is overly bulky and when you descend, the nylon flaps in the wind (loudly) and loses all of its insulating properties. The fit is also not what I'm used to: loose in some places and tight in others. If you like high quality cycling apparel do not buy this worst effort from Assos. I have two other jackets from Assos and two from Castelli that are immeasurably better. I made the mistake of wearing it (once) and thus cannot return it or I would. It will be up for sale shortly on eBay.

Good Winter Jacket

  • Familiarity: I've used it once or twice and have initial impressions
  • Fit: True to size
  • Size Bought: XL

I ride a great deal in all sorts of cold weather. I got this jacket (on sale!) to help round out my arsenal of winter jackets. I have a Bonka that I use from 10F to 40F. I got this to handle 30F to 50F. I like it so far. I would say the Bonka is definitely warmer but I was hoping that was the case. I am 195lb, 6'1" and in Assos the XL fits the best.

Perfection; as befits Assos.!

  • Fit: True to size
  • Size Bought: xl

I bought a second one of these just in case they change and discontinue this; it's THAT good.!! I have been a die-hard Assos wearer for years, from top to bottom and have never been disappointed, so this review is going to be glowing. The jacket fits perfectly as per sizing within the Assos range: I wear an XL in most of their garments and this one fits me perfectly in that size as well. The difficulty in winter clothing is especially to ventilate enough that the interior stays dry while still keeping the wearer warm. The brilliance of this jacket's design is that the double layer with air gap not only creates an extra cushion of air as a buffer, but that air also gets shuffled around a bit so whatever moisture comes from the inner layer is expelled with this 'recycled' air. I thought at first that the rather plasticy feeling of the outer layer would make for a jacket that does not breathe enough, but not so.. I tested it at higher than normal temperatures (60-65degF)to see if this was the case, and it never felt too hot or humid. Of course it did a fantastic job at the intended colder temps as well.

I can't say enough good about this and if you are looking for the absolute BEST in cool weather riding gear, look no further. Well.. maybe the Bonka Cento .. but that's a whole other level of perfection...

It looks and feels great

  • Familiarity: I've used it several times
  • Fit: Runs small
  • Size Bought: EXG

The jacket fits almost perfectly. I can move easily when riding. It kept me warm in the winter months. I haven't tried wearing it under 20 degrees yet, though. Maybe another winter.

As Advertised

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

Rode this today 30 degree average temperature over 30 miles in the snow in NY. I'm 5 11 195, wearing XL with a poly pro base layer. Kept me dry and warm. No complaints

How is this different from Bonka Cento?

ShaqUno is 1/3 the price. The BC is an entirely different piece of kit: Made from their miracle fabric, StrataGon which actually changes porosity with temperature as you ride (magic!) and so much more intricacy in the panels and design of the Bonka .. I love the ShaqUno as you can tell from my review, but the Bonka is made to be even a better jacket.. more work, more detail and perhaps with a wider temperature range.

I have this jacket (ShaqUno) and a Bonka Mille. I would say the ShaqUno is a little snugger (this is due probably to the Mille part of the Bonka). I would say the Bonka is a warmer jacket. Also the Bonka has zippered pockets on the outside of its three back pockets while the ShaqUno has just three back pockets.

Preliminary Review (& comp to Tiburu)

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

[Updated] WOW! Very warm jacket, especially considering its light weight. Assos recommends wearing just a base layer with this one. On my first test ride tonight, I used the lightest sleeveless summer base layer I have, just to calibrate the warmth of the jacket. I was perfectly comfortable even as temps dropped to the lower 40s. If you are comparing options, the model below this is the iJTiburu.4, which is essentially a long-sleeve jersey with a thick, single layer of stretchy fabric. The Shaq, by comparison, with a warmer "6"/Winter rating, has 2 layers: a soft, stretchy inner layer that hugs the skin and a loose, thin plastic outer layer that I presume blocks wind and protects you from the elements. The outer layer is not bonded to the inner layer so it has a slightly wrinkly appearance when worn, as compared to the stretched-smooth look of the single-layer Tiburu. That slight separation is not puffy but creates an air gap as an extra insulator. I think the size runs small. I usually wear a Large in shirts and jackets but I need an XL for Assos jackets. I understand the fit is optimized for the on-the-bike position, but it's plenty comfortable when standing upright. One improvement they could have made would be to include at least one zipper pocket. None of the pockets have a zipper. Another improvement that could be made would be adding a zipper vent under the arm pits; however, I found that by cracking the jacket main zipper open a few inches seems to direct air down into the jacket to cool the armpit area.

Alan, what are your measurements - height, weight, chest? Thanks.

[Alan B] -- Approximately 5'10-1/2", 175 lbs. It's been awhile since I got measured for a suit jacket, but if I recall, roughly 42"