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De Marchi Thermal Bib Short - Men's

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Item # DMA002K

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Item # DMA002K


Most cyclists who have turned cranks in anger during the cold months of the year have a preference of tights, knickers, or warmers. Even Competitive's office is divided over the debate. If you fall in the latter camp, then you likely appreciate the flexibility of De Marchi's Thermal Bib Shorts. When it's just chilly out, they protect your core; by adding knee or leg warmers, you can ramp up their protection for rides in winter temperatures.

The shorts' active ingredient is De Marchi's Roubaix-Type fabric, which has a soft, brushed lining for comfortable touch on your skin and temperatures in your microclimate. Nothing's worse than overheating at the very start of a cool-weather ride and spending a miserable fall morning spinning in a clammy chill, so De Marchi incorporated ventilating panels in the back. This means the Thermal Bib Shorts don't just insulate; they also regulate, keeping your body's temperature in the ideal range while evacuating any moisture from the inside.

The fit is designed with pre-shaped panels that conform to your body while in the cycling position, and the nylon and Lycra blend of the Roubaix material provides gentle compression and a firm, secure feel. The seams are all flatlock stitched to eliminate abrasion during repetitive motions like pedaling. The shorts provide less coverage over your stomach than De Marchi's corresponding knickers and tights, so you have more control over your upper body layering, too.

In the only substantial change from the previous edition, De Marchi upgraded the Thermal Bib Shorts to EIT's Endurance HP chamois, which is designed to provide enough comfort for base-building rides of two or three hours. It also has a low enough bulk to accommodate chamois-free tights for more insulation on longer rides in colder temperatures.

Tech Specs

80% polyamide, 20% elastane
3+ season
Endurance HP
Recommended Use:
Manufacturer Warranty:
2 years

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: 7h 11m per week
  • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.


  • Familiarity:I've used it several times

I've used these for a couple of rides in cool weather; roughly high 30s to low 50s. They've been comfortable and warm, and the chamois is pretty nice. It's not quite as good as the Castelli Progetto X2 chamois, but the difference is pretty small and I'm plenty willing to trade warmth on a cool day for an ever-so-slightly less perfect chamois. I've found that when temperatures rise above about 60 I end up a little too warm; so choose your shorts carefully when you start your ride.

I'm 6'4", 170 lbs. Skinny legs, roughly a 32" waist. I ordered the Large, and it fits nicely. Not much compression, but the legs and waist aren't loose, and the straps are the right length. The leg grippers seem to stay in place nicely, with or without leg warmers.