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The Castelli Endurance Short is designed for the long haul. The Endurance features Castelli’s top-of-the-line Progetto X2 pad which uses two layers of soft, stretchy, seamless material for the ultimate family-jewel-comfort experience, and the Action fabric with ProSecco treatment ensures the Endurance Short lasts through several seasons of thigh-burning ecstasy.

  • Two rear reflective inserts keeps motorists at bay
  • Color-matched Giro++ single-layer engineered gripper prevents shorts from shifting in flight
  • Four-needle flat-lock stitching for a chafe-free ride
  • Side inserts in Energia micro fabric provide comfortable form-fit
  • Reviews
  • Q & A

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Best pad I've had!

  • Familiarity:I've put it through the wringer

I bought 2 pair of these shorts and 2 pair of Endurance bib shorts, both in large and XL. I am 6' 1", 200 lbs., 34" waist. The Ls seemed too tight, so I kept the XLs.

- Sizing - with these shorts the best size for me would be right between a L and XL. I road about 2000 miles using these 4 pairs in about 8 weeks. After about 4 - 5 weeks the leg bands started to stretch some. It wasn't too noticeable on the bike, but was off the bike. So I returned all 4 pair to CC just under the 90-day limit and bought L size to replace. They are a bit snug, but I think they will work out good.

- The bib straps could be a little wider. No issues on the XLs, but they are a little tight on the Ls. Not really noticeable on the Ls once riding.

- The Progetta X2 pad is the best pad I have ever had. Over the past 20 years I worn Nike, Nashbar generic, Pearl Izumi and Louis Garneau (most recent) shorts. I have a Brooks Professional (leather) saddle. None of the other pads I've had even come close to the Progetta. With the original XL shorts I purchased I rode close to 600 miles per pair. The pad feels like new. I had to wear a pair of 4 - 5 year old LG shorts later in the summer, and it felt like I had no pad.

- The length of these shorts is just what I like. A little longer than mid-thigh. A lot of shorts seem to be sized so the leg ends pretty close to the knee, which I don't care for.



I can't say enough about the CC customer service and return policy. I felt a bit guilty about returning the 4 pair of shorts after almost 3 months of use - but they weren't going to make it in the long run. For the money I paid for them, I had to return. No hassles whatsoever.

Poor Stitching

  • Familiarity:I returned this product before using it
  • Fit:Runs small

I noticed the stitching on the side of the shorts was coming apart before I even got a chance to ride in them. Don't be fooled, Castelli isn't made in Italy. The jersey and shorts I bought were made in El Salvador. A lot of their products run small in size too, so be careful when ordering.

simple, effective

    So I'm not really one for spandex, but recently when I went to ride 1500 miles I figured it might be a good idea to get the right equipment for the job. These shorts definitely did the job and kept the nether regions in more or less working order, but I did have some problem with seams unstitching slightly. Not full blowouts, just random loose strings here and there. Outside of that though, they did what they ought to.

    I need high end cycling shorts with a...

    I need high end cycling shorts with a shorter length that average (1inch maybe). What do you recomend? Will the Castelli shorts work?