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Endurance 3 Short - Men's

2.923076923076923 out of 5 stars
13 Reviews


Size Chart


Why We Like The Endurance 3 Short

Tackle those long base mile rides in the Endurance 3 Short from Castelli. The short is designed to offer superior comfort for the entire duration of your ride so you can focus on the route and not your attire. Made of Castelli's Endurance Evolution fabric, the short stays in place with a compressive fit to help support muscles, and wicks moisture away quickly. Further muscle support comes courtesy of textured compression side panels.

Castelli builds the Endurance 3 with its top-tier Progetto X2 Air Seamless chamois that's redesigned to increase breathability and comfort. It sits softly against the skin, with a bacteriostatic layer and four-way stretch in the two-layer design. Castelli also includes its lie-flat Giro3 leg grippers to keep the leg openings in place for a soft, not sticky, feel against the skin. Final details include the embossed Castelli wordmark on the legs that add a touch of elegance.


  • A supportive short for long days in the saddle
  • Endurance Evolution fabric provides optimum support
  • Breathable design wicks moisture to keep you cool and dry
  • Compressive side panels deliver support to major muscles
  • Progetto X2 Air Seamless pad offers enhanced comfort an airflow
  • Giro3 leg grippers keep the short secured in place
  • Ideal for temperatures from 59° - 95°
  • Runs small, so we recommend sizing up for ideal fit
  • Item #CSTZ7GK
Endurance Evolution fabric
spring, summer
[medium] 11in
Progetto X2 Air
Leg Gripper
Claimed Weight
Manufacturer Warranty
1 year

Overall Rating

3.5 based on 3 ratings

Review Summary

1 Stars - 0 reviews
2 Stars - 1 reviews
3 Stars - 1 reviews
4 Stars - 0 reviews
5 Stars - 1 reviews

Fits Small

Screen reader users: the following list provides a visual scale to illustrate the product fit. Please refer to the heading above for the fit type in text.
Runs smallTrue to sizeRuns large

What do you think about this product?


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2 out of 5 stars

June 22, 2021

May be great - but not for me

I've used it once or twice and have initial impressions
Size Bought:
5' 9"

I wear medium in pretty much everything (5'9" and 155lbs); initially ordered a medium in this short and they were tiny. So I returned the medium (for a credit as Backcountry didn't seem to be able to handle an exchange) and ordered the large. I can fit in these, but so far they're still too tight, and the padding is inadequate for an endurance ride. I've worn them once for a three hour ride and I'm doubtful I'll ever wear them again unless I want to be sterile.

Niul B
3 out of 5 stars

May 13, 2021

Too Small

I returned this product before using it
Size Bought:
6' 2"

According to the size chart, I should be able to wear a XL or XXL, I'm 36 waist and 43 Hip, not even the XXXL will fit.

5 out of 5 stars

April 30, 2021

Great shorts...size up

I returned this product before using it
Size Bought:
5' 9"

These shorts are great but as others have mentioned with Castelli clothing, you might want to size up. I bought a medium but returned it for a large which fits much better. All other cycling clothing a medium is the correct size. I went on a ride with the large size and they're much better fit. I could barely squeeze into a medium without thinking I might tear them in the process.

Andrew S