Debut Merino Air Jersey
Lightweight and breathable merino jersey with effective thermoregulation for summer riding.
Merino wool is soft to the touch and prevents overheating even during hot summer days, maintaining its properties even when sweating. Silicone tape all around the entire lower perimeter keeps the jersey in place, and 3 back pockets provide plenty of room for snacks and small valuables. Complete with one-way YKK™NATULON® zipper and reflective logos. We used leftover materials from previous seasons, including zippers and silicone tapes, to make this jersey an extremely environmentally friendly piece.
4 way stretch
Moisture wicking
Breathable
Thermal regulation
Quick drying
3 large pockets
3D texture
Silicone at the bottom
Reflective graphics
Antibacterial
Merino wool
Lightweight
Specification
- Comfortable fit with racing design
- Silicone tape to keep the jersey in place no matter how hard you ride
- One-way YKK™ NATULON® zipper
- Made in the EU
Features
- 3 spacious back pockets
- Reflective Logos
Materials
- 90% Polyester
- 10% Merino Wool
Merino wool
Complete the look
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 | XS | XS | 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 | – | – | – | 3XL | XXL | XXL | 3XL |
Low to Medium Compression
A relaxed fit, allowing for full freedom of movement without compromising on performance. Designed for every day rides, where comfort is key.
Product Reviews
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Submitted 20.5.2025
By Max
Great fit
Great fit. Only knock is no valuables pocket. Materials are high quality.Show full review -
Submitted 15.5.2025
By Daniel
Another great jersey
Like all jerseys I own from Isadore, it fits like a second skin. I am 75kg and 1.78m and wearing size S. It fits tight but still comfy. Great fabric and style. I am happy that Isadore still offers plain, decent designs. The only thing I am missing is a small zipper pocket for my key/money/cards. Also the smell is very industrial. Combines nicely with the Light Sleeveless Baselayer in size S.Show full review -
Submitted 12.5.2025
By Bernhard
Super kompfertabel
Tolles Sommertrikot, leicht, gute Verarbeitung, sehr angenehm zu tragen. Schöne Farbe „gelb“ bin begeistert. Bestelle ein zweites.Show full review -
Submitted 12.5.2025
By Pawel
From Poland
Nice jersey
Really comfortable summer jersey. Great fit, close to body, almost like second skin.Show full review -
Submitted 20.7.2024
By Matej
Debut Merino Air Jersey
The colors are awesome (as with any other Isadore product)! The material feels great to use—soft and nice to the touch, warm, but also well-ventilating. I like that the debut line is stretchable and adjusts to the body shape. The pockets are great and can easily expand. A minor downside is that some threads are already visible after just a few road rides. By the way, I'm 182 cm and 98 kg (with a body shape resembling that of a rugby player), and XXL fits me the best. It was quite a hassle to find the correct size for me, as I don't have a typical road rider's shape. I got four products from Isadore and can recommend them to anybody (already thinking about other purchases).Show full review -
Submitted 16.7.2024
By Anton
Jersey
Happy with the quality and material. Jet Set looks great.Show full review -
Submitted 6.6.2024
By Milan
Dres
Dres som si objednal a je to perfektný materiál a pekná farba Určite odporúčamShow full review -
Submitted 23.5.2024
By Vaughan Watson
Excellent Jersey Great Value
Very comfy jersey at a good price. Love colour looks more expensive than it actually is. No zip pocket but that’s not essential for me. Bought size XS which is a great fit for me - can’t fault it! 175cm 55kgShow full review -
Submitted 15.5.2024
By Markus
Debut Merino Air Jersey
the merino jersey feels great and has a perfect fit for me (i'm 1,69cm / 62 kg) thanks!Show full review -
Submitted 26.4.2024
By Dominik Keisz
Perfect essential jersey for summer
The size guide was helpful and on point for me (182/68 - S). The fabric is great for summer rides, breaths perfectly, the fit is comfort-focused rather than race.Show full review -
Submitted 17.6.2024
By Martin Holeš
From Czech Republic
Dobry letni dres
Lehky, tenky, skvely na leto.Show full review -
Submitted 1.5.2024
By Julien
From Switzerland
Light and comfortable
Perfect jersey for summer, very light and very comfortable, great look. 182cm 69kg, size XS, for a very tight fit. Only negative point, no zipped pocket.Show full review
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Debut Merino Air Jersey
Origin of raw material
Merino wool from Australia - yarns from Germany / Polyester from Spain
Country of origin of the fabric
Skutec, Czech Republic: Oeko-Tex® Standard 100
Country of origin of the finished product
Final product from Romania with Oeko-Tex® Standard 100 compliant
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