Excellent fit and versatile three-season jacket

The Assos iJ.haBu.5 has the fit, comfort and lightness of a jersey, but the insulation and protection of a jacket, making it an ideal outer layer for chilly winter and spring rides. It's versatile enough to be a suitable three-season cycling top.

The iJ.haBu.5 has actually been a staple of the Swiss clothing brand's range since 2010, but this limited edition green colour is a new option. The jacket is designed for what the company describes as 'early winter', but the quoted temperature range of 6 to 14°C probably gives a better indication of what that means.

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Assos develops its own fabrics. This jacket uses Stratagon Light windproof fabric on all the front-facing panels (chest and front of the arms) and a Roubaix RXQ everywhere else. The Roubaix fabric has a fleece waffle pattern, which provides insulation and means it's soft next to the skin.

Assos iJ.haBu - inside.jpg

The two fabrics are thin and lightweight yet very breathable and insulating enough to make this a versatile top – it can be used in a wide range of temperatures. Just choose the appropriate baselayer, from a short-sleeve one for double digit temperatures and a chunkier long-sleeve layer for cold rides. In my experience, provided the riding pace was of a suitably high effort, it's good down to about 5°C.

Neither of the two fabrics used in the jacket is waterproof, but the front panels are water-resistant. They'll deal with a light shower, but any more than that and you'll want to reconsider your outfit, or throw on a waterproof jacket.

Where this jacket really impresses is in the fit. It's excellent. Assos has been making high-performance cycle clothing for a long time and it certainly shows. It's generous enough around the torso and shoulders so as not to be restrictive, and the length of the collar, arms and waist is spot on. The fabrics used provide enough stretch to provide good freedom of movement, all helping to deliver the great fit. The waistband is lined with a chunky elastic band and it keeps the jacket in place and stops the pockets sagging even when loaded.

Assos iJ.haBu - riding.jpg

Around the back are three regular sized pockets with two extra zipped ones. Together, all five provide plenty of cargo space for a decent length ride. It's always nice to have a zipped pocket to stash the house keys or mobile phone, and two zipped pockets is even better. Nice work Assos.

Assos iJ.haBu - back pocket.jpg

There's an additional pocket on the right sleeve, which could be used to place an iPod, with the necessary holes and loops for the headphone cable.

Assos iJ.haBu - headphones slit.jpg
Assos iJ.haBu - mesh pocket.jpg

The iJ.haBu.5 is a versatile jacket. It provides enough insulation for all but the coldest rides, and it's breathable and light enough to work well into spring, with careful adjustment of your baselayers. It's an ideal three-season jacket and the sort that can get a lot of use throughout the year. It's also not showing its age at all, and stands up to competition from newer rivals.

> Check out our guide to the best winter cycling jackets here

It's available in a wide range of sizes and a choice of colours if the green here isn't to your liking. It certainly commands a high price (though shopping around reveals some decent discounts), but it delivers excellent performance on cold, dry days.

Update: We had some comments on social media about the risk of crashing in an expensive jacket being, but Assos tells us it offers a crash replacement policy where. If you crash within one year of purchase and the garment can still be repaired, they will do so, free of charge (with the exception of damages to inserts and lenses). 

Furthermore, Assos will replace any garment within the first three months if there is any manufacturing defect, no questions asked. If the garment is older than three months, Assos will evaluate a case individually in terms of repair.


Excellent fit and versatile three-season jacket

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road.cc test report

Make and model: Assos iJ.haBu.5

Size tested: Medium, Piton Green

Tell us what the jacket is for, and who it's aimed at. What do the manufacturers say about it? How does that compare to your own feelings about it?

Assos says: "We introduced our iJ.haBu5, the first ASSOS Campionissimo insulator jacket, in 2010 and the feedback was overwhelming! A big seller! This is why we want to introduce this amazing jacket in two new colors: iJ.haBu5 Volt and iJ.haBu5 Calypso. By offering these two new items we enable the dealer to keep his product presentation fresh, dynamic and impressive to customers at every visit. The idea behind the LTD ASSOS products is to provide ASSOS Premium and proShop points of sale with something special. LTD products should be sold only to Premium and proShop sellers and not to Basic retailers. This time around LTD means LIMITED! We will offer it only as a one-time item for Winter 12, making it a potential collector's item."

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

Campionissimo Racing Cut

18 patterns in 6 different textiles

RXQ Sides and Lower arms

Stabilizer back panel

2 zipped cargo pockets

Central easy access pocket

Wind Protective high collar

Reflective front zipper

Rate the jacket for quality of construction:
Rate the jacket for performance:
Rate the jacket for durability:
Rate the jacket for waterproofing, based on the manufacturer's rating:
Rate the jacket for breathability, based on the manufacturer's rating:
Rate the jacket for fit:
Rate the jacket for sizing:
Rate the jacket for weight:
Rate the jacket for comfort:
Rate the jacket for value:

It's expensive but it's not overpriced, you get a lot of performance out of this jacket. Be sure to shop around as well; the green is a new option but the jacket's been around for a few years, so there are discounts to be had.

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

No problems looking after it with regular washes.

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

Works really well as a dry and cold wind jacket with plenty of pockets for longer rides.

Tell us what you particularly liked about the jacket

Really good fit and comfortable design, with none of the bulk or restriction of some jackets.

Tell us what you particularly disliked about the jacket

Not much use if caught in a downpour.

Did you enjoy using the jacket? Yes

Would you consider buying the jacket? Probably

Would you recommend the jacket to a friend? Yes

Use this box to explain your score

It's very good – a versatile and high performance jacket that works well as a three-season top.

Overall rating: 8/10

About the tester

Age: 31  Height: 180cm  Weight: 67kg

I usually ride:   My best bike is:

I've been riding for: 10-20 years  I ride: Every day  I would class myself as: Expert

I regularly do the following types of riding: road racing, time trialling, cyclo-cross, commuting, touring, mountain biking

David has worked on the road.cc tech team since July 2012. Previously he was editor of Bikemagic.com and before that staff writer at RCUK. He's a seasoned cyclist of all disciplines, from road to mountain biking, touring to cyclo-cross, he only wishes he had time to ride them all. He's mildly competitive, though he'll never admit it, and is a frequent road racer but is too lazy to do really well. He currently resides in the Cotswolds.


bendertherobot [1453 posts] 2 years ago

Great jacket, but, I think, just a bit left behind now. It's decently warm, but not overly so. It's not really good with damp weather.  There are lots of better all rounders. 

Dr. Ko [206 posts] 2 years ago

I bought the original version some years ago and it is my favourite 5-15°C jacket for not-wet condition.

RobO [16 posts] 2 years ago

I've had one for about 5 years, have worn it extensively and it still looks like new.  I agree that the technology is a bit behind (am thinking of clothing using Gore's technology in particular such as the Castelli Alpha jersey and the Gabba of course) but I don't feel that matters when something works as well as this.  

It's just a great piece of early Spring & Autumn riding kit and the fit is fantastic.