Signature Wind Block Long Sleeve Jersey
Merino jersey for mild, dry winters that reliably protects you from wind gusts.
Warm merino wool with a pile thickness of 18.5 mic. ensures proper thermoregulation and maintains optimal body temperature even in colder conditions. An added membrane on the chest, shoulders and sleeves doubles the material and prevents wind penetration. Three rear pockets provide plenty of room for snacks during long hours on the road, and reflective branding makes you visible in traffic.
4 way stretch
Moisture wicking
Breathable
Thermal regulation
3 large pockets
Silicone at the bottom
Reflective graphics
Antibacterial
Merino wool
Windproof
Temperature 8°C to 16°C
Weight 3/6
Insulation 3/6
Breathability 5/6
Wind protection 3/6
Compression 2/6
Specification
- Warm but very breathable
- The finest blend of merino wool and polyester
- Silicone tape around the back hem keeps the jersey in place
- Made in the EU
Features
- Membrane protection against wind
- Additional zippered pocket on the back keeps its contents dry and safe
- Reflective branding
- Excellent thermoregulating properties and odor control
Materials
Material 1
- 53% Polyester
- 44% Merino Wool
- 3% Elastane
Material 2
- 50% Polyester
- 30% Polyurethane
- 20% Polyamide
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
-
Submitted 17.4.2025
By Rrs
From Germany
Excellent
Outstanding Quality and skin protection in case of accident! Strongly recommendedShow full review -
Submitted 21.10.2024
By clgr
Nice jersey
Feels very good on the skin. Fit is a little weird to me rather snuck everywhere but on the upper arms. Since when do cyclings have big biceps? but all in all looks great feels good. Still up to test in lower temperature with some merino baselayer.Show full review -
Submitted 12.12.2025
By Felix
Fine Jersey
I already own some of previous years Signature jerseys; with and without windblock. Functionwise this one is as perfect as the others, from late autumn to early spring and I like the style.Show full review -
Submitted 2.12.2025
By Iwan
Nice
i rode at around 5°c - just perfect. Size L for me (180cm, 85kg) is pretty tight with a very thin baselayer... (usually size L from Isadore is bigger)Show full review -
Submitted 7.3.2025
By Petr Havlena
From Czech Republic
Very comfortable
Feels very comfortable, great materials used like always from Isadore. I am 182cm ~75kg and M fits perfectly.Show full review -
Submitted 19.11.2025
By Charlie Maria
From France
Great wind protection for cold rides
Blocks the wind really well on chilly rides while still breathing enough not to feel clammy. The fit in size S is snug but comfortable, with good arm length and a nice gripper at the waist. Paired with a thin base layer it’s perfect for most winter conditions and feels very high quality.Show full review
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Signature Wind Block Long Sleeve Jersey
Origin of raw material
Fabric 1.: Merino wool from Australia and New Zealand, Recycled polyester from Spain, Elastane from China
Fabric 2.: Polyester from China, Polyurethane from Taiwan, Polyamide from Italy
Country of origin of the fabric
Czech Republic with Oeko-Tex® Standard 100 label
Castello di Godego TV, Italy with Oeko-Tex® Standard 100 label and ISO 9001
Country of origin of the finished product
Final product from Lithuania with Bluesign, Fair Wear and Higg index certifications
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