Alternative Jersey

Our lightest jersey, defined by an aerodynamic fit, is designed for high-tempo riding, especially during the hottest summer days with a generous layer of sunscreen.

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Higher compression, longer sleeves, a low collar and a shorter fit in the torso reduce air resistance and create a second-skin feel. The combination of three mesh materials provides high breathability and reliable moisture wicking. You'll stay dry and safe from overheating even in the scorching sun. The extra-wide recycled silicone tape holds the jersey in place even under maximum load. No more compromising between performance and sustainability. The Alternative collection represents the best of both worlds.

Though our jerseys offer protection from UV rays, we always advise you to wear sunscreen protection underneath.

170,00 USD
Fallen Rock
Size Guide
  • Free standard EU shipping on any order over 150 EUR
  • Express EU delivery 1-2 business days
4 way stretch 4 way stretch
Moisture wicking Moisture wicking
Breathable Breathable
Quick drying Quick drying
3 large pockets 3 large pockets
Flat seams Flat seams
Silicone at the bottom Silicone at the bottom
Reflective graphics Reflective graphics
Antibacterial Antibacterial
Lightweight Lightweight

Temperature 20°C to 32°C

-8°C 0°C 8°C 16°C 24°C 32°C

Weight 1/6

Perforation 6/6

UPF rating 4/6

Compression 6/6

Features

  • Three spacious back pockets with easy access and plenty of space
  • One extra zipper pocket
  • The primary material is treated with HeiQ® technology to eliminate odours
  • Reflective branding for increased visibility

Materials

Fabric 1.

  • 87% Recycled Polyester
  • 13% Elastane

Fabric 2.

  • 93% Recycled Polyester
  • 7% Elastane

Fabric 3.

  • 90% Recycled Polyester
  • 10% Elastane

Fabric 4.

  • 77% Recycled Polyester
  • 23% Elastane
Alternative Jersey Fallen Rock
Alternative Jersey Fallen Rock 170,00 USD

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
Measurement points:
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.
Sizing guide
Sizing guide

Product Reviews

5 / 5
24 reviews
  • Submitted 16.10.2024

    By Kevin

    Sehr bequem

    Eins meiner lieblings Trikots. Sehr bequem und an heißen Tagen optimal.
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  • Submitted 26.9.2024

    By gabriel bueno aoki Verified buyer

    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 design
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  • Submitted 25.9.2024

    By Martin Verified buyer

    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.
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  • 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.
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  • 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.
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Alternative Jersey

Understanding where clothes come from is as important as their final quality, features, and design.
Origin of raw material

Origin of raw material

All fabrics: Recycled Polyester from China, GRS-certified Elastane from Italy

Country of origin of the fabric

Country of origin of the fabric

Colceresa, Italy: Oeko-Tex® Standard 100

Country of origin of the finished product

Country of origin of the finished product

Final product from Italy with Oeko-Tex® Standard 100 compliant