Signature Thermal Long Sleeve Jersey
The Long Sleeve Jersey is a classic. It’s an essential piece of cycling apparel with three big storage pockets for your convenience and made from the finest bi-component Merino. Comfortable and stylish.
The Long Sleeve Jersey quickly became a staple in our winter collection, made from an intelligent Merino/poly mix. These jerseys provide breathable, non-bulky insulation. Ideal on their own or with a short sleeve baselayer for early autumn rides. And they can be easily used as a mid-layer for those frigid December days.
Temperature 8°C to 16°C
Weight 3/6
Insulation 3/6
Breathability 5/6
Wind protection 3/6
Compression 2/6
Specification
- Warm yet very breathable
- Finest Merino wool bi-component material
- Silicone tape around the rear hem to keep the jersey in place
- Made in European Union
Features
- Additional zipped pocket to keep contents dry and secure
- Isadore reflective logo on the back pocket
- Side panels construction for better anatomic fit
- Additional eyelets inside the jersey to lead headphone cables comfortably
Materials
- 53 % Polyester
- 44 % Merino wool
- 3 % Lycra
Complete the look
Size Guide
Fit Guide
Product Reviews
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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 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 -
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 17.4.2025
By Rrs
From Germany
Excellent
Outstanding Quality and skin protection in case of accident! Strongly recommendedShow 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 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
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