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Assos Dyora RS Summer SS Jersey



If you love racing, you'll love every bit of this jersey – exceptional performance but it comes at a price
Race cut
Race performance
Innovative fabrics
Attractive design
High price tag

At every product is thoroughly tested for as long as it takes to get a proper insight into how well it works. Our reviewers are experienced cyclists that we trust to be objective. While we strive to ensure that opinions expressed are backed up by facts, reviews are by their nature an informed opinion, not a definitive verdict. We don't intentionally try to break anything (except locks) but we do try to look for weak points in any design. The overall score is not just an average of the other scores: it reflects both a product's function and value – with value determined by how a product compares with items of similar spec, quality, and price.

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Good scores are more common than bad, because fortunately good products are more common than bad.

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The Assos Dyora Rs Summer SS Jersey is as close to a skinsuit as a jersey can get. Its features and performance make it perfect for racers, serious sportive riders and anyone with a competitive streak who enjoys speedy, time trial style riding.

I was genuinely transported back to my race days when I pulled on the Dyora; I felt the urge to ride fast and feel some pain. The skin-tight fit, fast-drying fabrics and minimal cut are all designed for high-end performance. The Venus Violet colourway that I tested is understated but certainly won't see you go unnoticed on the road.

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The price might be difficult to justify for less competitive riders – unlike the Dyora shorts, which can be used through three seasons and for a variety of riding – but if you're serious about your performance against the clock or others, then consider buying this jersey.


I tested a medium and it was absolutely spot on. I just scrape into the medium bracket on Assos' chest sizing, though I sit well into medium on the height chart (a waist measurement isn't considered). There was no pinching or overstretched fabric, so I'd say stay true to size if you want the race fit that is intended. I am quite an athletic build, so a perfect fit might not be the case for everyone (it's not me in the photos).

2020 Assos DYORA RS Summer SS Jersey - side.jpg

Off the bike, the jersey feels quite short in the body, particularly at the front. As soon as you're on the hoods or drops, though, it simply drops into place; it just wants to be used on a bike.

Assos has done away with any kind of collar on the Dyora. This enhances the skinsuit-feel of the jersey and certainly helps keep you cool when you're working hard. There is no zip garage or guard, as you would expect on a weight-conscious piece of race kit; I never missed either.

2020 Assos DYORA RS Summer SS Jersey - collar.jpg

Fabrics & performance

The front panel is made from lightweight, textured fabric. It's soft, stretchy and very breathable.

The rear panel is an interesting weave; it stretches well horizontally but has very limited vertical stretch. This means that weighted pockets don't drag the jersey out of shape. For durability, there is a doubled-up strip of fabric, the full width of the pockets, taking the strain of the lightweight, mesh-like rear panel at the pocket joints.

2020 Assos DYORA RS Summer SS Jersey - back.jpg

Both of these fabrics are a move away from the traditional, smooth, silky touch Lycra that is often associated with race kit.

A wide, elasticated hem also helps to stabilise the jersey in the case of loaded pockets.

2020 Assos DYORA RS Summer SS Jersey - gripper.jpg

The sleeves are made with Push Pull fabric and sit snugly without compressing. The raw cut is great; they never budge but there's no elasticated or silicone-lined hem to potentially squeeze the arms.

2020 Assos DYORA RS Summer SS Jersey - sleeve.jpg

The sleeve material provides UV protection – UPF 50+ – while the front and rear panels come with UPF 25 and UPF 30 respectively. I can confirm (via tan lines) that these fabrics really do protect.

2020 Assos DYORA RS Summer SS Jersey - detail.jpg

Despite always working hard enough to break a sweat in the jersey, even on the hottest of days I've never sensed my torso or underarms being clammy or damp with perspiration. The fabrics are all doing what they claim.


The pockets are very accessible – not too high and no over-tight top hem – and they stretch well to accommodate bulky things. I fitted in a long sleeve waterproof easily without the seams looking strained. There is a headphone port on the right hand pocket if you want or need it. Some might object to a lack of a zipped pocket but to be honest I rarely use them. I never found myself wanting more storage space and appreciated the traditional three-pocket setup.

2020 Assos DYORA RS Summer SS Jersey - pockets.jpg

Attention to detail is evident where the zip is concerned. Quite often zippers 'drag' fabrics with them if you make small adjustments. This isn't the case here; it glides up and down without resistance or pulling of the fabric. It has the camlock feature, too, so you can set it in place.

There's a very small amount of reflective detailing – a strip of micro-perforations running along the length of the rear pocket – though this Venus Violet version that I tested is pretty striking; the Dyora is available in Black Series too.


I've washed the jersey after every ride during the test period on a 30 degree cycle, using non-bio detergent and no softener. The latter two aren't stipulated by Assos. Impressively, the jersey still smells like it did when I took it out of the packet. Granted, four weeks isn't a huge amount of time in the grand scheme of things but I've never had this from any other garment before. Assos claims 'built-in odourControl' on the miniCheck Tex fabric (used on the front panel) – can this really be the effect? Whatever it is that's helping it repel odours, it's doing its job exceptionally well.


Assos clothing is a real investment, but it does offer an impressive warranty: it will repair any manufacturing fault detected in its products within two years of purchase, or replace the product, on a case by case basis. After that, Assos will still try to repair your garment depending on fabric wear and tear. If you happen to crash in the kit within three months of purchase, you might be able to get a replacement under its crash policy.

That adds value when comparing it against similarly priced products. With the Velocio Breton SE Jersey that Lara recently reviewed, costing £142, for example, Velocio allows you to try any of its products for 30 days risk-free; if you're not happy, you can return it for a full refund. Encouraging, but no mention of workmanship warranty.

Rapha's Pro Team jerseys will set you back a similar amount, and again you have a 30-day returns window; beyond the 30 days it also offers a free crash repair service.

There are so many options in lower price brackets if you are willing to compromise on certain things. If you want decent breathability with a longer fit in the body, I'd say it's worth looking at Santini's Tono Chromosome Jersey (£90). Cheaper still, and in my opinion as good on performance as Santini's, is Lusso's R1 Style Breathe – good value at £64.99.


I genuinely can't fault any aspect of the Dyora, but it all comes at a high price. However, if you are a racer, tester, triathlete or serious sportive rider you will appreciate every penny of this jersey.


If you love racing, you'll love every bit of this jersey – exceptional performance but it comes at a price test report

Make and model: Assos Dyora RS Summer SS Jersey

Size tested: Medium

Tell us what the product is for

Assos says: 'DYORA is engineered with a second-skin fit, our lightest textiles, and comfort-driven details for competitive cyclists and serious riders alike.'

Tell us some more about the technical aspects of the product?

Assos lists these features:

miniCheck Tex: Open 3D knit fabric that has truly exceptional breathability. Quick drying and superlight. UPF 25 despite weighing so little. Built-in odorControl.

Push Pull: The pockets and sleeves are made of our ASSOS-developed Push Pull warp-knit textile with high UV protection (UPF 50+). Highly breathable, this fine gauge knit with bi-stretch is quick drying and very comfortable.

Stabilizer: Featherweight but strong material, perfect for creating a cooling panel on the back of the jersey. Maintains stability and alignment''and has UPF30''despite its minimal weight and volume.

Triple Ramp Pockets: Our storage design with three textile-lidded pockets optimally located for ease of access; security and stability guaranteed. Earphones hole in right pocket; micro-perforated bonded reflex for visibility.

Bonded Zipper: Temperature regulation courtesy of an ultralight bonded full-length zipper with camlock. Micro-injected neck tab stabilizes fabric to enable single-handed zipper operation.

Raw Cut Sleeves: Smooth wrap rear with bonded front strikes the best balance between comfort and stability.

Taped Waist: Bonded edges for added refinement to the fit and improved aerodynamics.

Lightweight Rear Hem: A wide, secure elastic hem that ensures a frictionless fit while riding.

aeroFit: Our trimmest, speed-focused cut that's tighter and more compressive than our racingFit. May feel restrictive out of the riding position but feels like a second skin while riding.

Composition: 59%PL 27%PA 14%EA

Rate the product for quality of construction:
Rate the product for performance:
Rate the product for durability:
Rate the product for fit:

I couldn't have wished for a better fit.

Rate the product for sizing:

Stay true to size if you want the intended skin-tight fit.

Rate the product for weight:
Rate the product for comfort:
Rate the product for value:

Right at the top end price-wise, but you are paying for top quality that has an unrivalled warranty.

How easy is the product to care for? How did it respond to being washed?

No problem. Impressive fabric properties have kept the garment smelling like new (to date).

Tell us how the product performed overall when used for its designed purpose

The jersey does exactly what it's supposed to when you are on the bike and working hard.

Tell us what you particularly liked about the product

Unique fabrics, fit and comfort on the bike. Attractive design.

Tell us what you particularly disliked about the product


How does the price compare to that of similar products in the market, including ones recently tested on

It's right at the top end of the price range but comes with the quality and performance that would be expected there.

Did you enjoy using the product? Yes

Would you consider buying the product? No, I'd need to be riding competitively on a very regular basis to justify the expense.

Would you recommend the product to a friend? Yes

Use this box to explain your overall score

An eye-watering price... but you are assured outstanding quality, functional fabrics for top-end performance and a jersey that looks and feels great to wear.

Overall rating: 9/10

About the tester

Age: 39  Height: 173cm  Weight: 64kg

I usually ride: Road  My best bike is: Carbon road.

I've been riding for: Over 20 years  I ride: Most days  I would class myself as: Expert

I regularly do the following types of riding: commuting, touring, club rides, general fitness riding, Getting to grips with off roading too!

Emma’s first encounters with a road bike were in between swimming and running. Soon after competing for GB in the World Age Group Triathlon Championships in Edmonton in 2001 she saw the light and decided to focus on cycling. 

After a couple of half decent UK road seasons racing for Leisure Lakes, she went out to Belgium to sample the racing there and spent two years with Lotto-Belisol Ladies team, racing alongside the likes of Sara Carrigan, Grace Verbeke, Rochelle Gilmore and Lizzie Deignan. Emma moved from Lotto-Belisol to Dutch team Redsun, then a new Belgian team of primarily developing riders, where there was less pressure, an opportunity to share her experience and help build a whole new team; a nice way to spend her final years of professional racing. 

Since retiring Emma has returned to teaching. When not coercing kids to do maths, she is invariably out on two wheels. In addition to the daily commute, Emma still enjoys getting out on her road bike and having her legs ripped off on the local club rides and chain gangs. She has also developed an addiction to touring, with destinations including Iceland, Georgia and Albania, to mention just a few. There have also been rare sightings of Emma off-road on a mountain bike…

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