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Castelli Free Bibshort - Men's

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Item # CST0046

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Item # CST0046


Pedal past the finish line wearing the Castelli Men's Free Bibshort.

Castelli constructed the Men's Free Bibshort from a combination of proprietary fabrics and strategically placed each to enhance your performance. Action fabric at the saddle contact point feels extremely soft yet resists abrasion. Energia fabric on the sides and back provides horizontal stretch, immediate return, and non-restrictive muscle support. Its ribbed knit surface aids in aerodynamics. On the front and lower back of the Free Bibshort, Castelli used Breathe fabric for, you guessed it, breathability. All-over Prosecco treatment disperses water droplets so they can evaporate quickly, and flat-lock stitching and seamless inner legs improve comfort.

Size chart

Castelli Men's

Note: Castelli has a "Euro" slimmer fit. We suggest ordering at least one size larger than your normal US size.

Bike Apparel
Chest 35.5-37.5in
Waist-Tops 29.5-31.5in
Waist-Bottoms 30-32in
Hips-Bottoms 36.5-38.5in
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.

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Here's what others have to say...

3 5

Free Bib Short Review

These bibs are nice. They fit really tight. I'm 6'2" 195 lbs and I bought an XL. My only complaint is the inseam length runs short and sometimes rides up a little to make them look even shorter. The pad is not overly bulky which makes for the tight fit. I have a pair of Craft bib shorts which are currently my long ride shorts. They are as comfortable as these but have the longer inseam

5 5


VERY NICE! I was not sure about the whole bib deal, but I must say, all my riding pants from here on out are going to be bibs. You can slide around in the saddle without the pants getting stuck to the seat. The padding is not large, which is nice, in some pants the padding is so big that it makes you feel like you have a load back there. I'm 6'1", about 197 pounds, I'm a 33"/ 34" waist and 43” chest, a bit long wasted, I got the XL and it fits perfect. I have a pair of Pearl, in size Large that are a little big on me.

4 5

Review Title

great bibs as other have said, much better construction than the lower end castellis and the thin, wide-set apart straps really do make a difference.i normally use large bibs/shorts (6',175lbs,33"waist) and initially bought the castelli endurance in XL following the advice to size up. the endurance straps dug into my shoulders and chamois seemed too far back. i got some XXL castelli frees and although the leg compression is not as snug as i'd like the straps are perfect. i'm probably somewhere between a XL and XXL in castelli's bibs or perhaps could've stayed with XL and let it stretch out.

5 5

Nice !

Very light material. Better for hot summer day riding. silicone band on the legs are actually on the outside but it seems to work ok. Light color is almost see-through and leaves nothing to one's imagination. I'm a 5'8" 145 waist size 31. M fits well but seems like Small would be a good fit as well. low rise actually come in handy if you have to stop on the road for a quick excess water dump.

5 5

Near Perfect

The last review is spot on. Fit and function-wise, these are the most extraordinary bibs you will ever find. The chamois is brilliant and makes you ride that much longer as it is extremely comfortable, great at absorbing and dampening the impact of riding on rough roads and stays cool and dry in the most hot and humid weather. You just end up wanting to stay on the saddle. The leg grippers and overall fit of the material including the shoulder staps are superb even on the longest rides. Great compression without feeling tight. The material is a bit fragile (hence my title 'near' perfect) and you notice wear where the jersey zipper rubs on the fabric.
Worth ever cent you spend on these.
Yep, I normally use a small in other products and the medium here is right on the money.

5 5

You Won't be Sorry

By far the most comfortable shorts I have. They set you back a few bucks, but are worth every penny. The materials provide great compression and breath well. The fit is very comfortable with no restriction at all. The leg grippers are different, with the gel on the outside, but they do work well. Sizing on Castelli is always an adventure, but these are pretty consistant. I'm 6'1"- 200lbs and the XXL fits great.

5 5

Got a large

I'm 5-9.5 & 155, usually wear medium but followed advise to go large in Castelli which was the right decision. Very comfortable, I rode 80 the first time wearing them and have NO complaints .... I would buy these again :-)

5 5

Size Up Size Up Size Up part 2

600 miles on these beauties with no complaints. The chamois is thin and dense making for wonder padding without the "diaper" feeling. The low cut front makes for easy access when nature calls. Minor wear inside left leg high near chamois stitching. I will definitely stay with Castelli bibs in the future. Remember to size up up.

5 5

Great bibs!

I've tried other Castelli shorts, and I've never been a fan of the KISS chamois. They always felt, to me, like I was wearing a diaper. However, the pad in these shorts is probably the best I've ever worn. It's nice and thin, yet very dense. In fact, the first time I wore them (on a 20 mile ride) I never even felt a bike seat. I can say, with absolute certainty, that I've never before worn a set of bibs that make the saddle of my bike literally disappear underneath me. For comparison, I've also ridden Giordana FormaReds, Rapha's, Assos Mille, and none had a pad as comfortable as this. Now I haven't ridden them 100+ miles yet, but they're still incredibly comfortable even after a metric century.

The pad is also very low profile, so you don't feel like you're wearing a diaper. I also love the super low cut front, as it makes taking a leak a very simple affair. Hunching over or sliding bib straps off the shoulder is totally unnecessary.

The material of the short is very supportive. I have a 31" waist, with rather large 25" diameter thighs, and a medium fits me fine. It's tight, but it should be tight, as these are intended to compress your muscles.

One warning, the light gray and white versions of these shorts are VERY revealing. While the fabric isn't transparent, it's thin and clingy enough to shrink wrap your junk like a sausage casing, leaving NOTHING to the imagination for anyone standing within 50 feet of you. The amount of detail these reveal about your man-bits is shocking actually.. borderline pornographic. I tried both and immediately sent them back. However, the black/anthracite model looks great and feels better.

If I had to list one negative about these, it's that the chamois isn't sewn in with the same sort of care as the rest of the short. The simple zig-zag stitch isn't terribly secure, and I've already had to warranty one pair because a stitch around the pad started to come undone.

5 5

Almost Perfect

I give these 5 stars because they really are great, in comfort and quality. One thing I had to get used to is the low waist cut, but now I like it. Really feel nice on the road, and excellent materials! I wash with normal settings in our machine, then air dry on a rack. After a year I can't see any deterioration of the materials!

5 5

Castelli Free Bib

I am relatively new to cycling and still trying to find out what equipment works best for me. I've tried Assos bibs as well as Giordana before trying the Castelli Free. Hands down, the Castelli work best for me.

The chamois is the most comfortable I've tried and anatomically, fits me the best. Although the chamois feels slightly thinner than others I've tried, it offers all day comfort and never felt soggy.

For me the search is over and I will continue purchase Castelli. On a side note, make sure to order one size larger as the fit is definately European (small).

How tough are these shorts? I've heard...

How tough are these shorts? I've heard some review say they start wearing way too soon.

Responded on

I've had to return 2 pairs due to wear on the inside of the leg just after the chamois stitching. However, this was due to the clamp on my seatpost being less than smooth. I ride my seat pretty far back on the rails...and the edge of the clamp on the post stuck out just far enough to put some pretty heavy duty fuzz on the shorts after just 2 rides. Got a new seat post, and haven't had a problem yet.

That being said...these are not the shorts I would wear for cyclocross, or xc mountain biking. The shorts are thin, airy, are extremely well ventilated...but not what I would call burly. Keep these on the road and you shouldn't have a problem. Take a spill on the trail and cross your fingers. High performance shorts...and an incredible value when bought on sale!

Nothing but praise for RealCyclist, their incredible customer service and quick return/exchange policy is a great comfort if you do have a problem or get the wrong size!

4 5

Size Up Size Up Size Up

I wear Medium in P.I.'s so I ordered the Castelli Free Bibs in Large as per recommendations from others. Had to send them back for XL's. Realcyclist rocks on the return policy and I'm looking forward to providing real saddle time feedback in a few days.

Write your question here...No small??? ...

Write your question here...No small??? Has it really come to this, that there isn't a man left with a 29 inch waist who is a cyclist???

Responded on

I don't know if you have owed Castelli short before and know you are a Castelli size small, but if you are a US size small in a Pearl Izumi short you will want a medium in the Castelli. Try the medium, you will like it.

Responded on

d.j2515645 - I agree with Damon Salter, the Castelli cut is Euro tight and small. A Castelli small is made for a small boy. If you have a 29 inch waist you would probbably not enjoy the fit into a Castelli small. Damon is right, if you are a P.I. small normally a Med in Castelli or Giordana should do the trick. I know that the size chart presents otherwise, but I hope this info (from someone who owns more Castelli than the average rider) helps.

5 5

free bibshort

I bought a pair of these two seasons ago and I love them, they fit perfectly, they dont stretch out or lose shape, they have a great chamois, they look awesome and to top it all off, you can take a leak with ease as the bib portion is real low cut. Buy these and you'll never want to wear anything else.

Are the white and light grey versions of...

Are the white and light grey versions of these see through?

Responded on

The velossimos are see-through (had to return them), so there's a good chance these are too. I have these Frees in black and they're great.

Responded on

The Breath fabric that these short and sever other castellis come with probably shouldn't come in white. It is thin.

It is a great fabric on the bike but if you do anything off the bike you don't want to be caught with it in public, especially in white. Unless ofcourse you are a exhibitionist.

Responded on

Yes the fabric is thin, but I wouldn't describe it as see through. I have a pair of the white/black shorts and would say that while they don't leave much to the imagination...they are not unwearable in public. On the bike it will never be an issue...but if you are a bit more modest than the average roadie....then you'll probably want to throw on a pair of over shorts before going into a store for a gatorade.

5 5


Very comfortable,but if you have a beer gut at all....dont get these. These shorts are cut quite low around the lower abs. This does make it a bit easier to breath if you have problems with some of the other bibs that come up to your nipples....but you really need to ok with your physique to wear these. Careful on sizing too,these are made for skinny little euro guys.
Great shorts though!

5 5


Very comfortable,but if you have a beer gut at all....dont get these. These shorts are cut quite low around the lower abs. This does make it a bit easier to breath if you have problems with some of the other bibs that come up to your nipples....but you really need to ok with your physique to wear these. Careful on sizing too,these are made for skinny little euro guys.
Great shorts though!

4 5

good, but low-rise

i ride mostly 40-50 mile climbs + rollers, so my judgment of these is based on that type of riding.

chamois is excellent. not as comfortable as a cannondale la-z-boy type for centuries, but easier on your tailbones than sugoi.

breathability: excellent. straps are so thin they are hardly noticeable. but...

fit: thighs...i love it. excellent muscle support. they really compress around the front of the quads and stay there. but the real problem is that the front really cuts into my stomach when i'm crunching. the whole appeal of bibs is that you don't feel the elastic on your waist, but you do notice the elastic on these when you are hunched over. any excess skin on your stomach has to make the decision to either be under the elastic or over it, and you feel it at first. by mile 10 you don't really notice or care, but that's why i'd give this -1 star. otherwise, these are my favorite bibs. just ordered the Velocissimos though, which have a higher waist, so we'll see...

In looking at the 3 color choices available...

In looking at the 3 color choices available for the Castelli Free Bibshort - Men's item, the black shorts look different than the red/white and the white/black - see both the open doughnut cutout in the back of the bib, and the pattern of the different panels of fabric. The red/white and white/black look more like the Women's style pictured on Castelli's website. Are those two actually women's shorts?

Responded on

You are correct, they are showing the Women's model. Before you order, you may want to "TALK TO A GEAR EXPERT" to confirm that you are getting the actual Men's model. They aren't even listing these shorts over in the Women's clothing...