Alternative Bib Shorts

Aerodynamic shorts from sustainable materials for long summer trips with a minimalist look.

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Thanks to ultra-fine microfibers with a high proportion of elastane, the main material is extremely compressive and long-lasting, so the bibs hold their shape even after repeated washings. 3D anatomically shaped insole made of high-density biofoam is extremely breathable and comfortable thanks to the perforations. Breathability is accentuated by perforated suspenders for optimal moisture wicking during high performance. Universal bibs fit best in the saddle position and provide enough muscle support for fast-paced cycling as well as all-day rides.

245,00 USD
Deep Forest
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
Silicone at the bottom Silicone at the bottom
Reflective graphics Reflective graphics
UPF UPF Protection
Lightweight Lightweight
High level of compression High level of compression
Flat seams Flat seams

Temperature 16°C to 32°C

-8°C 0°C 8°C 16°C 24°C 32°C

Breathability 6/6

Chamois Protection Level 6/6

Abrasion resistance 5/6

Compression 6/6

Features

  • Extra wide silicone print inside to prevent rolling out
  • Reflective branding for increased visibility
  • Flat seams
  • Perforated recycled suspenders

Materials

Material 1

  • 57% Recycled Polyamide
  • 43% Elastane

Material 2

  • 93% Recycled Polyester
  • 7% Elastane
Elastic Interface Elastic Interface
1 2 3 4 5

Elastic Interface Force MEN

Road-specific protection on ultra distances
1

ECO X-MIX FABRIC

57% Recycled PA; 27% Recycled PL; 16% EA
2

D65 BIO SUPER AIR FOAM

65 kg/m3. 65% Bio-based polyurethane foam
3

D60 FOAM

60 kg/m3 Polyurethane foam
4

HYBRID CELL SYSTEM INSERT

200 kg/m3
5

D80 FOAM

80 kg/m3 Perforated Polyurethane foam
Alternative Bib Shorts Deep Forest
Alternative Bib Shorts Deep Forest 245,00 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 XS XS XS XS S
W 67-72 kg XS XS S S S
W 73-79 kg M M M M
W 80-88 kg L L M L L
W 89-98 kg XL XL XL XL XL
W 99+ kg XXL XXL XXL XXL
Sizing guide
Sizing guide

Product Reviews

5 / 5
70 reviews
  • Submitted 21.4.2026

    By Lindsay

    Alternative bib shorts

    These bib shorts are my first pair from Isadore and I’m very pleased with them so far. I wear a medium in other brands and compared their sizing chart to Isadore. I concluded that the medium might be a bit slack and so ordered a small and a medium to be on the safe side. I tried the medium on first and the fit is very snug, at first I was convinced that they wouldn’t fit me at all as the fabric is very stretchy, more like swimming gear than cycling and different to my usual brand. Once on the fit is good, very compressive, very racy but very comfortable, the small size remained in the bag. For reference I am 65 years old, 5’10”, 10 st, 10 lbs, 30” waist and ride road and gravel bikes.
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  • Submitted 13.4.2026

    By Valentin

    nice color update

    my 3rd alternative bib right now.
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  • Submitted 13.4.2026

    By Yves Leduc

    Light and comfy

    Very happy with my latest purchase from Isadore. Chamois offers comfort for longer rides and this Alternative bib short is lighter and more breathable (I find) than the Echelon Aero bib. It is just a tad tight (Size L, I'm 1,83m 77kg), but nevertheless very comfortable. Top product I would highly recommend!
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  • Submitted 13.4.2026

    By Akira

    Comfortable, Well-Fitted, and Thoughtfully Designed

    The fit is excellent. There’s a noticeable level of compression, but it never feels too tight — overall, it’s very comfortable. Despite being relatively lightweight, the fabric feels durable and well-constructed, and the chamois has a high-density feel that provides solid support. The white shoulder straps are thin and subtle, which makes them less visible under a jersey — a nice touch. One thing to note is that the Sea Storm color appears lighter in person than it does in the photos. Overall, I’m very happy with the quality and performance.
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  • Submitted 29.1.2026

    By Kristián Verified buyer

    From Slovakia

    the best

    I’m extremely satisfied with the bibs. At first I ordered size M according to the fit guide, but I couldn’t even pull them over my knees. Size L fit me in the end, though it was still a struggle. I guess I’m not used to that level of compression, but after the first ride I don’t want anything else. They’re truly excellent—the only thing they’re missing for me is a pocket.
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Alternative Bib Shorts

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

Origin of raw material

Recycled Polyamide from Italy, Elastane from Europe

Country of origin of the fabric

Country of origin of the fabric

France, Bourgoin-Jallieu, Oeko-Tex® Standard 100

Country of origin of the finished product

Country of origin of the finished product

Final product from Lithuania with Higg Facility Environmental Module