Mens Opus Cycling Jeans (Dark Indigo)

Size Guide


UK delivery 24/07/24 - 29/07/24

International delivery info.

Slim cut, premium fabric, superbly comfortable cycling jeans. Using Repreve TruTemp365® recycled fibres to aid wicking and insulation performance. This technology works to keep you cool on warm days by moving moisture away from your body, and on cooler days the insulative properties help keep you warm.

The slim cut combined with premium stretch fabric offers style with comfort. Don't sit on seams, our diamond gusset takes the pressure off and helps prevent any chafing. Reflective dash print on the drive side turnup and reflective piping on the rear pockets aid your visibility.

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  • Made from 10.2oz stretch denim with a smart overdyed appearance, utilising Repreve TruTemp365® recycled fibres which offer wicking & microclimate performance
  • Cotton Herringbone internal waistband with our signature 3-dash print, offers comfort against your skin
  • Slim cut; comfortable on & off the bike
  • Reflective signature 3-dash print on the drive side turn-up
  • Subtle reflective piping on the rear pockets
  • Raised rear waistband helps keep these jeans in place while riding
  • Knee darts for ease of movement
  • Comfortable diamond gusset
  • V logo metal jeans button & metal YKK zip fly front
  • Subtle branded leather patch at rear waistband
  • Printed care instructions to avoid any uncomfortable, scratchy labels

Fabric Composition

  • 75% Cotton 24% Repreve TruTemp365®, 1% Lycra, 346gsm/10.2oz
Size Guide
Selected Unit: Centimeters
Size Waist Inseam
XS 66-71 82
S 71-76 82
M 76-81 82
L 81-86 82
XL 86-91 82
XXL 91-96 82

Your favourite jeans size is always a good guide.

Measure around your natural waistline, mid way between your belly button and bottom of your rib cage. Keep the tape comfortably loose, level and breathe out.

Measure from the top of your inside leg at crotch point, down to your anklebone. You may need someone to hold the tape at your anklebone. They could hold it at your crotch... that's up to you, and them.

Garment Measurements
Size (cm) Waist Hip Thigh Inseam
S 39 49 27.5 79
M 41 51 28.5 79
L 43 53 29.5 79
XL 45 55 30.5 79
XXL 47 57 31.5 79

Measurements are taken whilst garment is laid flat on a surface to aid comparison with your own garments.

Delivery & Returns


  • Free shipping for UK orders over £50.
  • Free shipping for International orders over £100.
  • We aim to get UK orders to you within 2-5 working days. Delivery lead times for international orders vary.
For more information click here.


  • If you're not completely happy with your purchase, you can return an item within 100 days of receiving your order.
  • Items should be returned in the same condition in which you receive them: the original product packaging and tags must still be attached, and the products must be in an unused condition.
Please see full return instructions here.


Superbly comfortable cycling jeans


Aiding wicking and insulation performance


A slim cut combined with premium stretch fabric, for comfort on & off the bike

Customer Reviews

Based on 12 reviews
philippe stevenin
Size: L
Height: 5'4 - 5'6
Fit: A bit large
Recommend: Yes

Mens Opus Cycling Jeans (Dark Indigo)

Size: L
Height: 5'4 - 5'6
Fit: A bit large
Recommend: Yes
Vulpine Review Mens Opus Cycling Jeans (Dark Indigo)

Great product, superb dark indigo colour, very confy with the stretch garn, it immediately felt a perfect fit for all purposes, even if a bit large, my new prefered jeans!

Great to hear the jeans have become your new favorites, Sacha! Thanks for sharing your positive experience!

The Vulpine Team

Peter L
Size: M
Height: 5'10 - 6'0
Fit: True to size
Recommend: Yes
Look great, easy to ride in but slightly strange fit.

These work well for their purpose, they look smart and are well designed for cycling in. As others have said, they are virtually black rather than indigo also the dye is a little loose so be careful in the rain before they've been washed. They are a little loose on the waist and tight on the thigh - designed for a Chris Froome who has let himself go rather than a Chris Hoy (I'm a slim 32" waist & I'd say the M is 33" but the thigh is still snug). The length is good for 32" - just long enough and not baggy. Generally a good purchase, especially in the sale.

Thank you for your review, Peter!

We're glad to hear the Jeans are functioning well, and we appreciate your feedback on the fit. We aim to cater to a broad range of cyclists, and your comments help us understand where we might improve.

Please let us know if you have any further feedback or need assistance with anything else.

Kind regards,
The Vulpine Team

Bruce Devlin
Size: S
Height: 5'10 - 6'0
Fit: True to size
Recommend: Yes
Outstanding jeans with a perfect fit

Superbly comfortable cycling jeans that fit perfectly and don't flat around at all. They come up high enough at the back that you can put a wallet in the back pocket and not worry about it falling out mid-ride. They're thick enough to be warm in the current sub-zero weather but not so thick that you get sweaty when it's a balmy 10 degrees. By far the best cycling jeans that I've bought.

Thanks for your fantastic review, Bruce!

Great to hear that the jeans are a great fit for you. Your feedback about their practicality is much appreciated, and we hope you get plenty of use out of them!

Kind regards,
The Vulpine Team

Damian Gallagher
Size: M
Height: 5'7 - 5'9
Fit: True to size
Recommend: Maybe
Faulty buttons

This is the second pair of pants I’ve bought that the buttons fell off in a less than two weeks

Thank you for sharing your review, Damian. We apologise for the inconvenience you've experienced with the buttons on the jeans. This is certainly not the quality we strive for, and we understand your frustration. We hope that our customer support team were able to resolve the issue for you. If you have any further questions or need assistance with anything else, please don't hesitate to reach out. We value your satisfaction and are here to help.

Kind regards,
The Vulpine Team