Alternative Winter Long Sleeve Jersey
Our flagship long sleeve and the warmest jersey in the Alternative collection. Built for late-autumn to early-winter rides, it pairs a narrow, race-ready fit with reflective details and Polartec® Power Grid™ for dialed thermoregulation. Finished with flat-seam comfort, two subtle chest pockets, three rear cargo pockets plus a secure zip pocket.
When cold rides get serious, this is the jersey you reach for. The Alternative Winter Long Sleeve Jersey uses Polartec® Power Grid™ a lightweight, bi-component grid fleece engineered to move moisture off your skin, open air channels for breathability, reduce bulk, and hold warmth without weight. The result: a stable micro-climate when you’re pushing pace in late autumn or stretching big days into early winter.
A narrow, racing cut keeps things streamlined; reflective details add visibility when daylight runs short. Up front, two subtle chest pockets double as wind shields and quick-stash storage. In the back, three cargo pockets and an additional YKK® Natulon® zip pocket secure snacks, tools, and valuables. Flat seams keep pressure points low so you can layer up and get on with the ride.
4 way stretch
Moisture wicking
Breathable
Thermal regulation
Quick drying
3 large pockets
Flat seams
Silicone at the bottom
Reflective graphics
Temperature 0°C to 12°C
Specification
- Insulation & climate control: Polartec® Power Grid™ (240 g/m²) bi-component grid fleece
- Superior wicking & breathability: Moves sweat outward for quick evaporation
- Warmth without weight: Efficient insulation for tempo efforts in cold weather
- Race-ready silhouette: Narrow cut reduces drag and layers cleanly
- Storage: 2 chest pockets, 3 rear cargo pockets, 1 rear zip pocket
- Zippers: YKK® Natulon® (recycled)
- Armpit panels: Reversed main Polartec® Power Grid™ fabric for improved airflow and ventilation
- Materials sourced in the EU, garment produced in the EU
Features
- Two subtle pockets that also shield the sternum from wind
- Three rear cargo pockets + one secure zip pocket
- Reflective logos/elements to enhance visibility in low light
- Construction: Flat-seam stitching for next-to-skin comfort
Materials
Fabric 1
- 94% recycled polyester
- 6% elastane
Fabric 2
- 75% recycled polyester
- 25% polyurethane
Polartec® Power Grid™
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 | 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 1.2.2026
By Aldran
Great fit + warm
Fit is great (xs for 177cm - 64kg). Warm enough for a ride around 10 degrees and with just a merino base layer. Love it!Show full review -
Submitted 1.2.2026
By Aldran
Great fit + warm
Fit is great (xs for 177cm - 64kg). Warm enough for a ride around 10 degrees and with just a merino base layer. Love it!Show full review -
Submitted 27.12.2025
By Bartlomiej Danek
From Poland
Great Jacket
When it's not rainning it's the best what I ever had. L size suits well for 187cm/82kg.Show full review -
Submitted 5.12.2025
By Pablo Diego
From Hungary
Perfect fit, great fabric
I am totally in love with the Polartec fleece. It fits very well. I was a bit concerned, but the fabric is stretchy and fits perfect. I haven't tried yet on very cold days. But it's quite cozy below 10ºC.Show full review -
Submitted 30.11.2025
By Rrs
From Germany
Wunderbar
Es ist schwer, an diesem Jersey einen Mangel zu finden. Er ist angenehm, funktional und sieht verdammt gut aus. Größen übereinstimmendShow full review -
Submitted 21.10.2025
By Ján Lobotka
From Slovakia
Skvelý zimný dres
Ozaj vydarený kúsok...krásne strihaný (nikde neodstáva a pekne sedí)...na to aký tenký a ľahučký je, tak je naozaj veľmi teplý a hlavne parádne priedušný (v kombinácii s merino nátelníkom v 7st úplne komfortná dvojhodinová jazda). Ani neviem napísať slabé stránky. 173cm/70kg - vzal som Mko :). Odporúčam!Show full review -
Submitted 15.2.2026
By Col
IRELAND
Nice garmanet, nice fabric and well finished, slightly tighter fit than advertised guide. BUT … the “Red” colour that is advertised in thd oroduct images is not accurate. Isadore have changed the Red jersey colour to a more “Rust” coloured version. No difference in the polartec fabric quality but I expected to receive a bright Red colour long sleeve jersey and its not the colour shown in the product images. VERY long delay in shipping to IrelandShow full review
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Alternative Winter Long Sleeve Jersey
Origin of raw material
China
Country of origin of the fabric
Italy
Country of origin of the finished product
Final product from Lithuania with Bluesign, Fair Wear and Higg index certifications
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