Alternative Jersey
Ultralight jersey with an aerodynamic fit designed for high-tempo rides on hot summer days.
Combination of three mesh materials provides high breathability, reliable moisture wicking and a second-skin feel. Flat seams and a glued collar on the front panel increase overall comfort, and a wide silicone tape keeps the jersey in place. Aerodynamic cut and high level of compression underline the pursuit of the highest possible performance from recycled materials. Snacks and small valuables fit in the three rear pockets and an extra zippered pocket, and their contents can be conveniently taken out while riding.
Though our jerseys offer protection from UV rays, we always advise you to wear sun screen protection underneath them.
4 way stretch
Moisture wicking
Breathable
Quick drying
3 large pockets
Flat seams
Silicone at the bottom
Reflective graphics
Antibacterial
Lightweight
Temperature 20°C to 32°C
Weight 1/6
Perforation 6/6
Compression 6/6
Specification
- Made from GRS certified recycled materials
- The primary material is treated with HeiQ® Fresh technology to eliminate odors
- The cut provides a medium to higher level of compression
- Recycled YKK™ NATULON® zippers
- Recycled zipper pulls
- Extra wide recycled elastic band on the bottom hem
- Made in the EU
Features
- Glued collar in the front for maximum comfort and minimum thickness
- Flap along the full length of the zipper with a garage at the bottom for skin and bibs protection
- Three spacious back pockets with easy access and plenty of space
- One extra zippered pocket for valuables
- Reflective branding for increased visibility
- Flat seams
Materials
Material 1
- 87% Recycled Polyester
- 13% Elastane
Material 2
- 93% Recycled Polyester
- 7% Elastane
Material 3
- 90% Recycled Polyester
- 10% Elastane
Material 4
- 77% Recycled Polyester
- 23% Elastane
Size Guide
Fit Guide
| MEASUREMENT | XXS | XS | S | M | L | XL | XXL | 3XL |
| A – Chest | < 85 | 85-91 | 91-97 | 97-103 | 103-109 | 109-115 | 115-121 | 121-127 |
| B – Waist | < 73 | 73-79 | 79-85 | 85-91 | 91-97 | 97-103 | 103-109 | 109-115 |
| C – Hip | < 88 | 88-94 | 94-100 | 100-106 | 106-112 | 112-118 | 118-124 | 124-130 |
| D – Arm length | < 72 | 72-74 | 74-76 | 76-78 | 78-80 | 80-82 | 82-84 | 82-84 |
| E – Inseam length | < 76 | 76-78 | 78-80 | 80-82 | 82-84 | 84-86 | 86-88 | 86-88 |
Chest – circumference measured in widest place
Waist – circumference measured in narrowest place
Hip – circumference measured in widest place
Arm length – measured from neck line to wrist
Inseam length – measured from crotch to ankle
Please note that given measurements apply to average body proportions. When chosing a size, please consider specifics of your own body.
| Weight / Height | 159-164 cm | 165-170 cm | 171-176 cm | 177-182 cm | 183-188 cm | 189-194 cm | 195+ cm |
| W 60-66 kg | XXS | XXS | XS | XS | XS | – | – |
| W 67-72 kg | XS | XS | S | S | XS | – | – |
| W 73-79 kg | – | – | M | M | S | M | – |
| W 80-88 kg | – | – | XL | L | M | M | L |
| W 89-98 kg | – | – | XL | XL | L | L | XL |
| W 99+ kg | – | – | – | XXL | XXL | XXL | XXL |
Medium to High Compression
Our most aerodynamic fit, designed for fast rides and races. The fabric hugs the body to enhance performance, provide muscle support and aid in moisture wicking.
Product Reviews
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Submitted 30.6.2025
By Sören
From Switzerland
Exactly what I needed
Comfy, breathable, good materials, solid build. Great product.Show full review -
Submitted 25.6.2025
By Erik Kullgren
From Sweden
Favourite jersey!
This immediately became my favourite jersey! It looks really good and stands out in a very subtle way. The fit is slim and follows the body perfectly without feeling too tight because it stretches very well. I am 180 and 78 kg with a muscular build and Large suited me perfectly (size medium was good in length but too tight over the chest for me)Show full review -
Submitted 24.6.2025
By Niklas Simons
From Germany
Comfortable Jersey
After debating myself wheter to buy a jersey this expensive or not I finally gave in and treated myself to it. I was between L and XL and decided for the smaller one. It is by far the best jersey I have ever owned - great comfort and style. Already thinking about other pieces I´d like to get. The only thing I was a little surprised with was the colour. I expected off-white but it tends more towards a slight green.Show full review -
Submitted 7.6.2025
By Richard Schnek
From Slovakia
Great fit
Very comfortableShow full review -
Submitted 5.6.2025
By Lukas
Super nice
I love the jersey, it’s super lightweight and nice in warm weather. Mind sizing up if you don't want it to be too snug.Show full review -
Submitted 21.5.2025
By Florian Tauscher
Best jersey I own
After warring multiple brands I must admit that the fit of that „Alternative Jersey“ is truly perfect. I love the lighter material on the shoulders. Material feels really soft, long lasting and high quality. In terms of colour: slick!Show full review -
Submitted 20.5.2025
By Finn
Premium Quality
Nice Jersey, high end quality. The pockets are nice and tight. Definitely worth the priceShow full review -
Submitted 22.4.2025
By Christian Tösch
From Austria
Great fit
ComfortableShow full review -
Submitted 9.1.2025
By Roman
Letný hit
Výborný do najteplejšieho leta. Jeho strih mi sadol aj ked nepatrím k úplne najchudším. Patrí medzi moje najobľúbenejšie kúsky :)Show full review -
Submitted 16.10.2024
By Kevin
Sehr bequem
Eins meiner lieblings Trikots. Sehr bequem und an heißen Tagen optimal.Show full review -
Submitted 26.9.2024
By gabriel bueno aoki
From Czech Republic
First time a shirt fits me
I am 188cm and 89kg All brands i have shirts XL because they are too long but to fit correctly. This is the first model i get L and its long enough but not too tight. Great materials, super light for summer and nice designShow full review -
Submitted 25.9.2024
By Martin
From Czech Republic
Beautiful quality jersey
My first jersey from Isadore. I really like the design. I'll get more from this collection. :) Based on models from product pics I should have went for XS, but an M size is ideal for me (182cm with 65kg) with an undershirt. I like that the short sleeves are actually longer than most other brands. The material feels good. The pockets are quite tiny, so you can't fit much in, but at least they don't pull out by multiple use. The small zip pocket eg. for keys or ID card is useful.Show full review -
Submitted 22.9.2024
By Lukas
well done jersey
Every part of the jersey fits perfectly even when I have fully loaded pockets the jersey fits comfortably and stay on the right position not hanging on your ass. I also appreciate the zip system which works easily and looks durable.Show full review -
Submitted 23.8.2024
By Thomas
Great Fit and Quality
This fits very well and seems to be of great quality. I will likely buy this again as it’s especially great for the hotter climbing days here in California. The only reason why It’s not 5 stars is the top of the zipper. I wish there would be a little piece of fabric that goes over the top as other isadore jerseys have as it sometimes peaks a bit / is uncomfortable.Show full review -
Submitted 5.7.2024
By Roman Bratek
Skvelo sedi
Skvely dres. Sadol mi výborne. Mam velkost L a moje miery su 179cm a vaha 77kg postava skôr svalnata. ???? vyborny material priedusny a paradne sedi aj na mojich rukach s cim mavam problem. Odporucam.Show full review -
Submitted 13.6.2024
By Romain
Good product
Great fit and quality product. Love the design !Show full review -
Submitted 29.5.2024
By Oliver
fantastic jetsey
great fit even when your biceps is trained. back pockets remain where they should be. ideal for warmer weather - I can highly recommend this product.Show full review -
Submitted 23.5.2024
By Jan
Chique
Love the jersey. Absolutely lightweight for everything up from 20 °C. I'm 1,94 m and 84 kg an a Medium has a tight race fit but perfect length.Show full review -
Submitted 16.1.2024
By Donovan
Super nice and comfortable
Been using this for a few rides now, its super airey and super comfortable even on hot days. Its sustainable and comfortable that should be good enough for anyone!Show full review -
Submitted 21.11.2023
By Jeonseung Yang
From South Korea
pretty good
176cm 71kg Size S fits tightly. It was the fit I wantedShow full review -
Submitted 7.11.2023
By Joseph
holds up to a New Orleans summer
This is the only jersey I ride with for anything 70 F+ and own 3 of them. Can't see myself ever switching to anything else.Show full review -
Submitted 26.10.2023
By Pawel Skowron
From Poland
The Best
Jersey is very well made. The fit is perfect for someone who is looking for more race-fit clothing. Sleeves are very comfortable and mesh on the sides gives you additional ventilation. The silicon strip at the end of the jersey keeps the jersey from sliding up.Show full review -
Submitted 13.10.2023
By Martin
great
beautifully designed light jerseyShow full review -
Submitted 11.7.2023
By Roman Byrchenko
From Canada
Great on hot/humid days!
Feels great on my first ride. Jersey is well ventilated + has a nice pocket for valuables.Show full review -
Submitted 31.5.2023
By Paul Muzni
Love it
Fit is great. Colours/design is bright and happy.Show full review -
Submitted 18.5.2023
By Daniel
Love the color
Nice light Jersey. The fit ist very Athletic. for a more comfy fit, better Go Up one sizeShow full review -
Submitted 13.9.2020
By Miles Baker Clarke
From United Kingdom
The jersey I reach for every summer
Alternative offers an exceptional fit with super light materials. The combination is a jersey I reach more than any other. Plus, it's made with recycled fabrics so I can feel a little better about my purchaseShow full review -
Submitted 31.8.2020
By Chun Tung Sin
From Hong Kong
Wonderful jersey
Light , fit , I wear it when riding over 34C and I feel so comfortable. This is the best jersey I have ever had, even better than climber 2.0.Show full review -
Submitted 13.7.2020
By Mark Botham
From United Kingdom
Perfect
I had this delivered to me under the new subscription. I didn't own an outright summer race Jersey so took the plunge. I had medium at 5ft 10 and 80kg as this is my usual Isadore size. It hugged me tightly and I was slightly concerned I was between a medium and large. It's first ride was a gravel ride in 15 degrees heat. I had a thin base layer on. In my relaxed riding position the Jersey seemed to mould to my body exceptionally well. It no longer felt tight and medium was the right choice. It kept me warmer than it should have done and only when it went in to single figures was an extra layer was needed. The main plus points were the rear pockets. They were large and appeared lower than normal so were very easy to access. The larger zip was also a winner and never once got caught in the fabric. A truely 10/10 Jersey.Show full review -
Submitted 20.6.2020
By Tim
From Netherlands
Fantastic jersey, (very) slightly letdown by shallow pockets.
Who knew it would be possible to create such a magnificent jersey from recyclable materials? Well, not me. It feels and fits for me like the club jerseys I used to wear when I was younger. I'm 177cm in height and weigh 86 kg's with around 22% bodyfat, (Blame Corona ;D) so I'm not the stereotype skinny cyclist. Size Large fits me well. If you like a slightly more relaxed fit, go for the Extra Large. Design is great, something really different, but nothing too flashy. Great reflective details (so important!) and a high quality finish all around. My favorite thing might be the zipper on this jersey. Too many times I've owned quality jerseys with terrible, small teeth, metal zippers. Not with this Alternative jersey. Bigger plastic teeth and smooth action. It might seem like a small thing, but think about it the next time you are ready to go out, only to zip up at the last moment and have cloth stuck in between the zipper. The last thing I want to mention are the pockets. Unfortunately, these are quite shallow and none of them have a zipper. I always go out with a hex and torx key, my phone and a house key. I haven't lost anything during riding and I don't anticipate it happening, but my phone (Samsung Galaxy S7) is already a little too big for the back pockets. In my opinion a jersey in this price range should have pockets that are a bit deeper or have a small zipper pocket like some of your other jerseys.Show full review -
Submitted 28.5.2025
By Etienne
Top quality
This jersey is great, top quality materials. It fits really tight, so make sure you take a size or two above your usual one.Show full review -
Submitted 8.12.2024
By Peter Šinský
From Spain
The best summer jersey
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Submitted 1.7.2022
By Robert
From Slovakia
Light, comfortable, ecological
I am 174cm, 65kg, chest 94cm and size M (as per size table, though it is different from the one applicable to long-sleeved winter version of this Alternative jersey) is spot on. The fit is pretty aero but no pinching anywhere (including sleeves). The jersey weighs next to nothing (below 110g) and breathes great. Looking forward to popularizing our brand on the road.Show full review -
Submitted 6.8.2020
By Jakub
From Slovakia
Great summer jersey
For all those really hot rides out there. Perfect jersey, can fit everything necessary in the pockets without any problems. Size M fits great (I am 180cm tall and 74kg weight). No issues riding in it even in lower temperatures (around 20 degrees), just use a merino first layer under it and it works perfect. As there is no merino in this jersey, it's really easy to take care for it, as you need just basic tech-wash to clean it in after every ride.Show full review -
Submitted 13.6.2025
By Luke
Small
The quality, materials, finish and everything else about Isadore apparel is fantastic, but I find their sizing to be more and more off. I am 196cm/78kg, size L is way too small, as in very tight and short (hem above belly button). It seems like their jersey are getting shorter and shorter, which may be fine as long as your bibs go up beyond your navel (assos don't )Show full review
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Alternative Jersey
Origin of raw material
All fabrics: Recycled Polyester from China, GRS-certified Elastane from Italy
Country of origin of the fabric
Colceresa, Italy: Oeko-Tex® Standard 100
Country of origin of the finished product
Final product from Italy with Oeko-Tex® Standard 100 compliant
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