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Castelli - Free Aero Shorts - Women's

Castelli Free Aero Shorts - Women's

41% Off
$99.95 - $119.95 Original price:$169.95
Changing the size selection, or changing the selected color after selecting a size, may change the associated price

Item #CST006Q




Free Aero Shorts

You’ve almost certainly heard the term, "free speed" bandied about in regard to aerodynamically-designed products. We’re not experts, but something you have to buy certainly doesn’t equate to free in our book. Semantics aside, the concept of a component providing a speed advantage via design isn’t new, but its application to clothing is somewhat new, and the Castelli Free Aero Women’s Shorts are a perfect example.

At their core, they’re as good as every pair of Castelli shorts we’ve tried, which is to say durable, flattering, supportive, and comfortable in equal measure. But, beyond that, the contoured cut and some fabric magic team up to deliver a savings of 10 watts at 50kph, which means that if you’re in the breakaway, you’re spending less energy to go the same speed as the other riders with you. It doesn’t sound like much, but compounded over even an hour-long crit race, you’ll be just a bit fresher when it comes time to sprint.

  • Progetto X2 chamois
  • Dimpled fabrics to control airflow
  • Giro3 grippers

Good brand, not so good design

  • Familiarity: I've put it through the wringer
  • Fit: True to size
  • Size Bought: M

These shorts are the excellent construction you can depend on with the Castelli brand however the design is lacking. These free Aero shorts cut low in front on the waist. This makes no sense at all and end up being uncomfortable on a ride. Go with a waist band that actually goes to the waist or better yet, wear bibs IMO.

I love my Castelli bike shorts!

  • Familiarity: I've put it through the wringer
  • Fit: Runs small
  • Size Bought: Large

I'm very glad that I read all of the reviews before selecting my size, because the re viewers were =right. You need to order a full size larger than usual. I usually order medium, I'm 5'7", 130 lbs. I purchased the large, and they are even a bit snug, but wearable. If you want a more relaxed fit, I suggest you get 2 sizes larger. I know...crazy

Solid Chammy

  • Familiarity: I've used it several times

These are still relatively new in my cham repetoire (~ 1 year), but so far they're still super tight (read: don't chafe) and the cham has the perfect amount of padding.
Fit: I ordered a M, and usually wear a US 2-4, or small, so I would recommend ordering up a size.
Will definitely be investing in another pair.

Look great BUT run SMALL

  • Size Bought: M

These bike shorts look great I loved the red and white highlights and the midweight pad. Sadly--they are going back and all the Larges are sold out--tells me the majority are leaning towards wearing a large. I typically order small in shorts as a like a snugger fit but this med. would barely go over the legs--Bye Bye

Decent chamois

  • Familiarity: I've used it once or twice and have initial impressions

I ordered several pairs of cycling shorts for my upcoming century ride. I really needed a better chamois than the current PI shorts I had been wearing. I was excited about these based on the reviews, but after trying on the shorts and testing them by sitting in them on a hard surface (not actually riding), I found the chamois to be pretty good, but not quite as good as another pair I had ordered. I ended up liking the Louis Garneau's neo power the best.


  • Fit: Runs small
  • Size Bought: Medium

I own 2 pairs of these shorts. Really, I want to own every color and throw the rest of my shorts away. These are hands down the best shorts I have ever worn and I have worn many brands. These are a perfect balance of light weight with a perfect chamois, not to thick or too thin. I am always tugging and pulling at my other shorts, but these never move. I have rode 100 miles in these and never had to adjust them. The leg bands are light and "different", but they work just fine. The colors on the leg band are not vividly bright.

love this short

  • Fit: Runs small
  • Size Bought: med

this short fits snug with the feel of compression. i like it... and i did order a size up.. i'm 5'2" and wear a size 8. i bought a med. i could have gone with a large even. but this is good. i love the light grip around the leg.

Thanks for the feedback Michele! Glad the shorts have worked well for you.

Best chamois

  • Familiarity: I've used it several times
  • Fit: Runs small

Castelli makes my favorite chamois for endurance riding and climbing. I wear a small across all brands and sometimes an xs. All my castelli shorts are a small but these really do run smaller in the waist and ride lower. I agree with others to size up, and I wish I had. They are loosening up but all of the seams in this particular style makes them really snug with less give. I have the black and white and love the look! Once you get the size down they are awesome!

Focus on your ride in these shorts

  • Familiarity: I've put it through the wringer
  • Fit: Runs small

Excellent quality non-bib option perfect for long hours in the saddle. Waistband and leg bands do not ride up or bunch in any way. Once on, you won't have to adjust them on the ride. Chamois is high-quality, comfortable and cut very well. Castelli typically runs small overall for me, as was the case with these shorts. Order one size up from your US size.

A Safe Bet

  • Familiarity: I've used it several times
  • Fit: Runs small
  • Size Bought: small

Though my girlfriend had no real intentions to up her aero ante, she loves these shorts and the pad in them. She wishes she got the bib straps, but oh well.

Best shorts, EVER

  • Familiarity: I've used it several times
  • Fit: Runs small
  • Size Bought: Large

The bad is so comfortable, hugs my bum perfectly on and off the saddle. The material the shorts are made out of is flexible, breathable and light. They are my favorite shorts, ever! Definitely, order a size up for best fit.

Love the shorts; might want to size up

  • Familiarity: I've used it once or twice and have initial impressions
  • Fit: Runs small
  • Size Bought: Medium

The shorts are made from a light-weight, compressive fabric. The chamois is a comfortable as any I've ever used. The fit is super, the grip bands are comfortable, and they look great on! I can't say enough good about these shorts. I have 35" hips and am typically an XS or S. I ordered up to a Medium and the fit is perfect.

Excellent shorts

  • Familiarity: I've used it several times
  • Fit: True to size

These shorts are the best I ever worn and I will most likely buy another pair.
They fit like another skin and the chamois is perfect in every way.

great shorts

  • Familiarity: I gave it as a gift but have feedback to share
  • Fit: Runs small

Gave as a gift- " I love these shorts! I have used these a few times and the chamois is just right! I used them the first time on a 40 mile ride with no problem. They are comfortable and the perfect length for me. Looking to buy another pair! I did buy a size up.


  • Familiarity: I've used it several times

I loved these shorts when I got them, they fit great and looked great so I was really psyched to have a new pair of shorts. Didn't take long, though, to develop the first saddle sore I've ever had in 14 years of riding. Looking closely at the chamois this time I noticed the edges are not sewn down flat but have a 1/4 inch of fabric loose all the way around. Shoddy construction on Castellis part. Now I've been forced to sit out on nice days that won't last much longer! Never ever again. My pair of $136 shorts are in the trash...

Never got a real chance to wear them

    I ordered a M in the pants and they fit perfect. So I ordered a M in the shorts, I couldn't even get them close to on. Might want to order a size up.

    THESE are the shorts!!

    • Familiarity: I've used it once or twice and have initial impressions

    I feel like I've tried them all, trying to find a perfect short/chamois that worked for the long rides. THIS IS IT!! I rode today, 55 miles and never once had to readjust because of an ill fit or a sore behind. Thankfully I bought all three colors 'cause this is my short from now on! Kudos - perfection!


    Women's Apparel












































    Note: Castelli has a "Euro" slimmer fit. We suggest ordering at least one size larger than your normal US size.
    How to Measure:
    For best results, take measurements over your underwear.
    Measure under your arms, around the fullest part of your chest.
    Natural Waist:
    Measure around your natural waistline, keeping the tape a bit loose.
    Measure around the fullest part of your body at the top of your legs.
    Using pants that fit well, measure the crotch seam to the bottom of the leg.