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Item # DMA0169

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Item # DMA0169


We find it quite unfortunate how often we're forced to compromise between comfort and durability. Typically, a pair of bib shorts are either lightweight and fall apart after a season, or their so bulky that you don't even want to wear them for an entire season. However, De Marchi has finally cracked the code with its new SL Bib Shorts. Now, with reinforced stitching and a new cut ideology, the SL is free to use lightweight materials that take the edge off of summer conditions.

De Marchi used a lightweight iteration of the venerable Sports Lycra fabric for the bulk of the SL bib shorts' construction. Why? Because this material encompasses all of the characteristics necessary for cycling. It possesses a high-level of breathability and moisture management, meaning that the fibers are both permeable and moisture wicking. So, your excess body heat is allowed to escape, keeping you consistently cool. Meanwhile, the fabric's ability to pull moisture away from the skin and quickly evaporate it leaves you dry and free from irritation.

Additionally, Lycra possesses a natural four-way stretch, which means that bib shorts will conform to your position and movements, not against them. This is further supported by De Marchi's incorporation of its Body Framing concept cut. Essentially, this means that SL's seam placement was designed to accommodate the body positions and movements of cycling. As a result, you'll find that the SL is free from any bunching, pinching, or chafing. However, while this high-level of structural conformity is appealing, we find it even more impressive that it doesn't inhibit Lycra's natural compressive tendencies. By this, we mean that the fabric is supportive to the muscle groups of the legs. And when couple with the six-panel cut, the bib shorts help to minimize the fatigue-inducing effects of muscle oscillation as a result of road vibration.

And to secure this precise, anatomic fit, De Marchi installed elastic carbon fiber mesh bib straps at the uppers. These straps are gently contoured at the front of the torso, and complete De Marchi's Body Framing concept. The carbon fibers were incorporated to the mesh for their moisture wicking and thermo-regulation characteristics. So, you'll remain dry and well ventilated at a common point of heat exhaust and sweat accumulation. For the shorts portion, De Marchi installed pre-shaped, seamless leg grippers to prevent the shorts from shifting. As a result, comfort is increased by eliminating the poignancy that's attributed to either silicone or elastic grippers. Instead, this design provides a smooth, secure interface that's free from irritation.

As for the chamois, De Marchi went with its venerable Elastic Interface Technology Endurance SuperAir HP insert. This chamois was selected for its ample level of cushioning. However, don't think that there's irritable padding where your body doesn't need it. Instead, this anatomic insert features high-density open cell padding in selective areas, like the sit bones. Accordingly, the areas like the ischial and perineal zones, that are prone to high levels of pressure, are relieved. And with the ample elasticity of the chamois and its surface fabric, chafing is minimized.

It's also worth noting that the SL bib shorts are made in Italy from Italian-sourced materials. Additionally, this piece is Oekotex-certified -- a certifiable European textile standard.

The De Marchi SL Bib Shorts are available in six sizes from Small to XXX-Large and in the colors Black, Black/white, Black/red, and Black/blue.

Tech Specs

Claimed Weight:
[size large] 190 g
Removable Chamois:
Leg Gripper:
yes, Endurance SuperAir HP
[body] Sports Lycra, [bib straps] carbon fiber mesh
Recommended Use:
road cycling
Manufacturer Warranty:
2 years
Chamois Thickness:

Size chart

De Marchi

Sizing Chart

De Marchi Men's Apparel
Jerseys / Jackets
33.0 - 35.0in
(83.8 - 88.9cm)
(88.9 - 94.0cm)
(94.0 - 99.1cm)
(99.1 - 104.1cm)
(104.1 - 109.2cm)
(109.2 - 114.3cm)
(114.3 - 119.4cm)
Shorts / Tights / Knickers
(Height ft)
5.0-5.2 5.2-5.5 5.5-5.8 5.8-6.16.1-6.36.3-6.56.5-6.6
How to Measure:
For best results, take measurements over your underwear.
Measure under your arms, around the fullest part of your chest.

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Here's what others have to say...

Avg. ride time: 9h 18m per week
  • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.

If fit very comfortable

  • Familiarity:I've put it through the wringer

Theseare the shorts I used for my endurace riding last year on the mtn bike did great. De Marchi shorts in general jsut do it for me. They are a very breathable thin material though so if you go down they may rip, it happened recently and I will need to get another pair at some point, as far as fit they are snug on me at 5'8 175lbs in large not overly tight but snug, I have done endurace races where I was in them for proabbly close to 14 hours.


Straps were way too short!

  • Gender:Male
  • Familiarity:I returned this product before using it

Had high hopes for these but the straps were way too short and gave me the male version of the camel toe.....not pretty nor comfortable!

For reference i ordered XL and I am 6ft and 200lbs but not fat. Bib seems to be of good quality but fit is way off.

Haha, man, too funny. I laugh because I've tried bibs that were too small on me and I know exactly what you're saying.