Endurance 3 Short - Men's
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Quantity
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.
Details
- 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
- Material
- Endurance Evolution fabric
- Season
- spring, summer
- Fit
- form-fitting
- Inseam
- [medium] 11in
- Chamois
- Progetto X2 Air
- Leg Gripper
- Giro3
- Claimed Weight
- 6.4oz
- Manufacturer Warranty
- 1 year
Reviews
Q&A
What do you think about this product?
Overall Rating
3 based on 18 ratings
Review Summary
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.View
Selecting an option will reload the available reviews on the pageJuly 31, 2025
Like some things, others not so much
- Familiarity:
- I've used it several times
- Size Bought:
- M (returned S)
I am 5'7" tall and I am thin and lean at 117 lbs. Even though they way Castelli sizes run small, I thought they still might be OK for me (another brand size S was too loose for me). But, indeed the Endurance 3 size S was too small to get over my hips comfortably. So I went for size M, and it is OK. Waist size is ok, although I would like it to sit a little higher to be all the way over my hip bones. Chamois is quite good: quite firm around the "sit bones" yet the front part is not too bulky. The shorts' material is hard to the touch, unlike the silky feel of my favorite Pactimo Summits (size XS, by the way). The disappointing thing is that the leg openings are too wide such that the grippers don't touch the thigh skin all the way around. Most men won't have my build,, but I hope this review helps someone to understand how Castelli fit is implemented in detail. Aside from the grippers, they are comfortable to ride in.
May 17, 2025
So far, so good
- Familiarity:
- I've used it once or twice and have initial impressions
- Size Bought:
- XL
- Height:
- 5' 9"
- Weight:
- 175
Very comfortable, with a thick cushiony seat pad. As other reviewers have said, these fit small, so I recommend sizing up. I'm 5'9" 175 and ordered XL. You will like these shorts if you like a snug, compression-type fit.
December 29, 2024
Poor quality stitching
- Familiarity:
- I've used it several times
As others have mentioned, the stitching that holds the chamois pad in place is poor quality. Mine failed on two pairs or shorts after a handful of rides. Caution: If you notice a stray thread, don't ignore it as I did. I put the bibs away for the season, then began riding next season only to realize the entire seam was slowly unravelling. Upon contacting Backcountry I was informed my purchase was no longer eligible for Castelli warranty claims due to a 2 year max on claims.
Originally reviewed on Backcountry.com
July 10, 2024
Too Small
- Familiarity:
- I returned this product before using it
- Size Bought:
- XL
- Height:
- 5' 9"
- Weight:
- 165
Have had Castelli shorts before and loved them and they fit well. These are listed as men's size XL they might as well be boys medium.
June 30, 2024
Well constructed
- Familiarity:
- I've used it several times
- Size Bought:
- XXL
I'll keep the review short: upsize. I ordered XXL and it was even tight.
July 13, 2023
My fourth pair. Love 'em
- Familiarity:
- I've put it through the wringer
- Size Bought:
- M
- Height:
- 5' 10"
- Weight:
- 137
Yes, these fit snugly, because they are supposed to! If you are looking for lycra shorts that Taylor Swift wears, these are not for you. I have never owned a pair of "Pro-Level" bike shorts but I think these come pretty close for a medium level price. The padding is enough and stays in place. Everything I want out of a pair of bike shorts. I will order again.
March 3, 2023
Stitching on the Pad is a major problem
- Familiarity:
- I've used it several times
- Size Bought:
- L
- Height:
- 5' 9"
- Weight:
- 165
I bought three pairs of these shorts last year and after about 5-6 months of use the stitching on the inside pad detached on all three pairs and the gel pads slide out. The material and all else is incredibly comfortable and durable but the stitching is a major problem. You may only get a few months of use before this happens so at $140/pair you may consider trying something else.
February 28, 2023
Great short, great quality - runs small!
- Familiarity:
- I gave it as a gift but have feedback to share
- Size Bought:
- large
- Height:
- 5' 10"
- Weight:
- 185
I ordered these for my husband and he is always a size large. These did NOT fit. I had to re-order an extra large but worth it for the quality and fit.
December 29, 2022
Sizing chart is a disaster
- Size Bought:
- Xl
- Height:
- 6' 1"
- Weight:
- 190
Purchased a large which should’ve been fine too small sent back for an extra large not much difference between the two sizes too small I don’t know if I will waste my time and do a xxl
January 14, 2022
A Big Disappointment
- Familiarity:
- I've used it once or twice and have initial impressions
- Size Bought:
- Large
- Height:
- 5' 8"
- Weight:
- 159
Because previous reviews indicated that these shorts run small, I got Large rather than my usual Medium. The waist is too tight and the bottom of the shorts are loose on my legs. I am 5'8" and weigh 159lbs. The chamois isn't that great either. I would definitely not recommend these shorts.
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