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4 5

Community Rating | 39 Reviews

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Item # CST0449


Do the work now, reap results when it counts.

Imagine being able to ride in cold weather with clothing that emulated all the best features of your summer-weight kit: bibs that didn't restrict breathing, a chamois as good as the one in your best shorts, and lightweight materials that didn't feel bulky or restrictive. The Castelli Sorpasso Bib Tights are part of Castelli's Rosso Corsa line of products, and as a result, they get the Italian manufacturer's very best treatment in materials, design, and fit.

The Sorpasso Bib Tights begin with Castelli's top-of-the-line Progetto X2 pad, the same pad found in their best shorts. The top layer that contacts your skin is a made from a seamless, four-way stretch microdenier fabric designed to move in harmony with your body and eliminate the chafing that can come with materials with too little stretch. It receives an antibacterial treatment and is bonded to a variable thickness pad made from multiple density foams; the result is a smoothly contoured pad that places the firmest foam where support is most needed. Perforated inserts help to relieve pressure on the sit bones and perineum -- just where riders experience the greatest pressure.

The front of the tights are cut from Thermoflex Core Due to keep the wind out. This two-layer material traps air in a hollow-core layer of polyester while moisture is transported to the outer nylon/Lycra layer where it can evaporate. A simpler fabric, Thermoflex, is used for the portions of the tights not exposed to the wind for greater breathability. Giro++ grippers keep both the bib straps and ankles in place. It's rare to find bibtights that are this light and this warm.

Like the bibs in the Rosso Corsa line, the waist of the Sorpasso Bib Tights is cut very low to eliminate restrictions on breathing caused by pressure on the belly.

The Castelli Sorpasso Bib Tights are Black/white and are available in six sizes from Small through XXX-Large.

  • Hollow core fibers trap warm air and move moisture better than traditional fibers
  • Progetto X2 chamois keeps your nether regions comfortable on long rides
  • Ankle zippers make the early-morning dressing routine a little easier

Tech Specs

Thermoflex, Thermoflex Core Due
yes, Progetto X2 Air
Chamois Thickness:
yes, Giro++ uppers
yes, accents
Recommended Use:
winter road cycling
Manufacturer Warranty:
30 days

Size chart


Men's Apparel
 Small Medium Large X-Large 2X-Large 3X-Large
Chest  35.5 - 37in
(90.2 - 94.0cm)
37 - 38.5in
(94.0 - 97.8cm)
39 - 41in
(99.1 - 104.1cm)
41 - 43in
(104.1 - 109.2cm)
43 - 45in
(109.2 - 114.3cm)
45 - 47in
(114.3 - 119.4cm)
Waist 29.5 - 31.5in
(74.9 - 80.0cm)
31 - 33in
(78.7 - 83.8cm)
33 - 35.5in
(83.8 - 90.2cm)
35.5 - 37.5in
(90.2 - 95.3cm)
38.5 - 40.5in
(97.8 - 102.9cm)
41 - 43in
(104.1 - 109.2cm)
Hips 36.5 - 38.5in
(92.7 - 97.8cm)
38 - 40in
(96.5 - 101.6cm)
40 - 42in
(101.6 - 106.7cm)
42 - 44in
(106.7 - 111.8cm)
44 - 46in
(111.8 - 116.8cm)
46 - 48in
(116.8 - 121.9cm)
How to Measure:
For best results, take measurements over your underwear.
Measure under your arms, around the fullest part of your chest.
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.

Reviews & Community

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Here's what others have to say...

4 5

Initial impressions

  • Gender: Male
  • Familiarity: I've used it several times

Used only a couple of times so far.... I'm 6'-1", 195 lbs, XXL fits well. Worn on cool overcast days, but not cold weather, was comfortable and did not feel like over-heating. Should be fine for colder rides. I find the quality average as some of the stitching was already coming loose. The chamois is ok although it seems to be positioned a little too far forward in the tights... I feel like I'm sitting off of the back of it on the bike and that there is way to much room and bulk in the front area. Decent value at the sale price I paid, wouldn't pay full price for them.

Responded on

I totally agree with Andreas review. The chamois is placed to far forward. Feels like their on backwards.

4 5

Comfortable tights but stitching?

  • Familiarity: I've used it several times

These definitely fit tight. I'm 155 lbs with 32" waist so comfortably Med, but these are quite snug. Putting them on the first time I heard ripping - the bit of red piping across the belly ripped. I carefully hand stitched it and now they fit now I can stretch the front enough for a pee break.

Aside from that questionable bit of front piping, they are great! Chamois is comfortable and the tights have a great temp range. I've worn them from just above freezing to mid 60's comfortably!

4 5

I love this product

  • Familiarity: I've used it several times

I am 5"10 180 and I went with the XL (they were on sale). They fit well if not a tad long but I am very happy and just a little loose (room for a thin base layer when it is extra cold). These are my first pair of quality "winter" bibs and I extremely pleased with them. I use them from -12 - +6. I am now 100% comfortable in Canada's Nov, late Feb, Mar etc.

2 5

Dissenting vote. Not their best.

  • Gender: Male
  • Familiarity: I returned this product before using it

6' 186 lbs, size XL in these. I wanted to like these but they defied my attempts. I found oddly, that with the correct size - firm compression everywhere, the legs were slightly too short and also too big around at the ankle. No stirrup either. This is a bad combination as it feels way weird and guarantees they'll ride up. The cuff around the very bottom is this cheap flimsy material which I can't describe except to say "rubbery" and it isn't like the rest of the leg fabric at all. The tights look sharp but the Castelli Logo is just ironed-on vinyl letters which as we all know will come off one at a time and fairly soon your thigh look like the Wheel of Fortune board. I don't care about the logo and based on the nice fabric, I actually returned these for the knicker version. I reasoned that would solve the ankle issue as I suspect these were designed as knickers to begin with and simply duplicated in the long version with no thought going into it. I was liking the knickers but I found a stitching defect and those were last pair in my size. The shoulder straps don't impress me - same space material as the leg cuff but likely to work. The fabric itself is very nice and makes me wish they put more thought into these things.

I am 5-11 and 150lbs, size recommendatio...

I am 5-11 and 150lbs, size recommendation?

Best Answer Responded on

You have about 2 inches and about 5-10 lbs on me and I would probably be maxing out the small. Depending on how you carry your weight the Medium would probably best fit you.

5 5

Progetto X2 pad is the very best!

  • Gender: Male
  • Familiarity: I've used it several times

Love these bib tights! Great fit, comfortable to ride for hours. So good if you ride long distances as the chamois (pad) is Castelli's premium pad. I'm 5'7' at 165 lbs. 34 waist and wear a large in these as Castelli runs small so size up.

5 5

Works and Look Great

  • Gender: Male
  • Familiarity: I've used it several times

These tights are very comfortable once you get them on; very form fitting. I own two pair and just ordered a third. Luckily I purchased the first pair at a bike shop because they told me they were going one size up. I usually wear a XL but they said I should go XXL due to the Castelli's are one size down from what is advertised. I first tried them on at the bike shop. It was a task getting them on the first time. It was like that commercial on TV of some women getting into skinny jeans. I did hear a stitch or two pop. However once I got them on they were very comfortable. I just received the 2nd pair from Competitive Cyclist and there was no stitch popping. They feel really great once you get them on. Just remember to look at the sizing chart very closely because most likely you will have to go one size up.

5 5

Simply Amazing

I was going to purchase a pair of cold weather tights and just throw them on under my shorts but I decided to go with a full tight set up - bibs and all. These bibs have fit the bill perfectly. The tights don't restrict my motion at all. They are quite warm and have a soft lining on the inside which hasn't chafed me yet. They're the perfect weight for Seattle's winter weather (~low-high 40s). Additionally, I have yet to try a chamois better than Castelli's Progetto X2 Air (although I haven't tried an Assos chamois yet). I have a very bony butt and need a really good chamois in my bibs/tights. This chamois stays in place and holds well on the seat and on your butt. The only thing I would change about these is that I wish they had the little foot-wrap to help keep the tights down. They do ride up like half an inch or so when riding, but its really not much. Overall: these seemed a little pricey to me first.. but they are well worth the money!

PS: Castelli has a European fit. As a general rule, go up one size from your regular size!

5 5

Great Cold Weather Bibs

  • Familiarity: I've put it through the wringer

So I'm into my second cold weather season with these tights, and they are the foundation for my cold weather riding. First of all a comment on the size, I'm 5'9", 145 - 150 pounds, and 32.5 inches in the waist. In general, I wear size L Castelli's, but in this case the mediums are a perfect fit. As JDHP437112 said, these are like a skin suit so don't get them if you don't want that effect and feel. I've worn them down to 28 degrees, at which point I felt the cold but was not affected by it, through the 30's where they excel, and into the mid-40's where I still don't feel overheated by them. I love the straps - the smooth lycra is comfortable, and has plenty of flex to move when I do. It can feel a little tight when I first put them on, but once I get into riding position I don't notice them at all.

So far these have been very durable. All my bike clothing goes through a delicate cycle with a little detergent, then hangs to dry, and these still look new as they move into season 2.

And best of all, my wife likes how I look in them, although maybe that's not the bibs.... :-)

3 5

Great if you want to advertise for Caste

  • Familiarity: I returned this product before using it

Caveat, I only tried these on, so take this review for what you will. I ordered XL, I am 6'4 with a 34 in waist, these were way too tight in the shoulder straps, so I sent them back. Several things that struck me about them: they have knee vents. I dont know about you, but I have never said to myself when its 30 degrees out "damn I wish my knees were cooler, there is so much sweat down there I have to pull over." Second, the branding. I guess that is Castelli's thing, but I'm not sponsored by Castelli, so I feel like I should get something for advertising their brand while riding my bike. There are logos everywhere, not to mention the red beneath the black. If advertising what cycling gear you wear is your thing, these are the tights for you.

I'm going with more simplistic and functional on the next go-round.

5 5

Really warm and flexible

  • Familiarity: I've used it several times

This pair of bibs are perfect! It is made really well. You need to order one size up. I'm usually a Large, I weight 174lbs, 6"0 and ordered an XL, fits me perfect, zipper stay zipped, it is really warm and it does not make you sweat, I've used it in 21F to about 44F, then it gets to warm, but under those temperatures it has kept me warm, and the bibs are so flexible it is easy to pedal without being constrictive, you almost do not feel the bibs.
I've put them in the washing machine, under delicates, not too much detergent and washed them about 10 times, everything looks brand new.

4 5

Awesome Quality - runs rather small

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

Received the item very quickly! Great shipping. I am 5' 11", 172lbs., 31" waist and 41" chest.. item ordered was a Large, however the waist is very tight as was the chest.. exchanging for XL. Item quality, construction look and feel is really great and I am looking forward to getting the right size!!!

4 5

Love them. Really warm.

  • Familiarity: I gave it as a gift

I bought these for my husband. He likes them a lot. They keep him warm. No complaints.

3 5

Seam came loose

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

So after buying the bib tight, i try it on a 40 mile ride. overall the material keeps me warm. However, i do find that the size of the bib should be marked one size up. I am 5'11 and size M should be size S. After few more rides and machine wash, the seam on the right side where the white strip of fabric came little bit loose. I think it is because of the constant stretching. However, when you pay this amount of money, you should expect this last forever without any damage. I am please with the overall quality of the tight, just wish it is better constructed with one piece material. it keeps you warm for sure.

Responded on

curious...What country are they made in?

5 5


  • Familiarity: I've put it through the wringer

Just right for a Seattle winter. It is all about the pad.

5 5

Oh yeah... these are good

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

These are great because they're as non-restrictive as bib tights can be, and they keep you not cold, and not too warm. I say "not cold" because I don't like gear that warms you up to a sweat.

I've ridden with them in 38F and 42F temps, and they are just right. I think they can be used down to freezing temps.

I'm 6'2" and 220lbs and the XXXL just fits. The XXL fit was okay but snug, except for the shoulders and waist, which were too tight.

These are exactly what I need to extend my cycling season another 2 months in Massachusetts.

5 5

These things rock!

In the winter cold of CT they have kept me warm...beware though they run small. I am 5'9" 162lbs and the mediums are like a skin suit.

2 5

Does not live up to the hype...

These bibs arrived with great anticipation and expectations, but lived up to neither. The first pair had a pen tip sized hole on the bottom left leg near the zipper. Also, as I very carefully put the medium size (I'm 5'8", 165lbs.) on, I heard a ripping sound. Initially ignoring the sound, I went out for a ride and noticed the leg zippers refused to stay closed; they constantly migrated up. After the ride I inspected the bibs to see if I could find evidence from the ripping sound. Upon inspection, the stitching had begun to come apart at the seams along the waist.
BackCountry sent another pair. I took these out of the bag and didn't even wear them: the leg lengths were slightly different, and the emblems were already flaking off. I had the same problem with the third pair that was sent.
Despite my problems with this product, Backcountry showed exemplary customer service, shipping the replacements and ultimately issuing the credits when the products were returned.
I replaced these with De Marchi winter bibs, and they have been superlative. Not only are they designed in Italy, but made there also. The difference in quality is vast. It's a shame Castelli doesn't seem to have gotten a hold of quality control in the countries where they're having their products made.

Responded on

Someone somewhere else has said Castelli is now made in that true?

Responded on

To Commuter. "Also, as I very carefully put the medium size (I'm 5'8", 165lbs.)" You may not be willing to face reality ;) but in no real world should a medium (anything) fit someone only 5-8 yet still 165 lbs unless you're pure muscle with no body fat. I wear medium in almost everything and I'm 5-11 158 lbs. Only smalls I wear are sometimes Arcteryx base layers.

Anyway, I agree sometimes the Castelli stuff is lacking quality. Thanks for posting the other brand to consider.

Responded on

Hi James,
I should have given more details about my physical size. I'm 5' 8" and 165, with a 40" chest and a 29.5" waist. Given these parameters, the product should fit.

4 5

Seems great but....

I ordered this due to the many great reviews. I wanted it for those in between temps this spring. Not 10 mintues after I placed the order for these Chainlove had the Castelli Ergo big tights for like $56. Plain Jane item but great reviews so I pulled the plug and decided to compare them to the much pricery Sorpasso. They arrived the same day and without riding them I can say the Sorpasso seems to be made of ever so slighty denser material up front. So I would expect it to be slightly warmer...possibly down into the 30s. The insert is also nice but the problem is there is around a $70 difference between the two items. The Ergo also is not a walking Castelli billboard which I like and at 52 years I only ride on the weekends during the cooler months so bibs are a low use item. Conclusion. Return the Sorpasso and keep the Ergo. When was in my 20s and not flyihng a desk 9-5 I would have kep't the Sorpasso's. I think they would be an awsome tight from 35 to 50F. As for fit on both the L did the trick. 6'0" 160 lbs 30 inch waist.

5 5

Awesome- bought two pair

I ride in temps down to about 40 degrees and usually used leg warmers. My Castelli (Duran) leg warmers are a slight bit warmer than these tights, but these are way more comfortable- no upper thigh cuff squeeze- so I use these almost exclusively now. Plus, as the day warms up, they are middle-of-the-road enough in warmth to have a broad comfort range. I have grown to like thin chamois, and this is a good thin one. Two thumbs up.

I didn't have the sizing issues described by many others. I'm 5'8", 155 lbs, 31" waist, 31" inseam, athletic build. More a crossfit guy than a biker. Read reviews and bought a Large, but it fit sloppy. Bought Medium and it fits great- snug but not tight. Length perfect. Only issues is with the straps, that feel a little short (I have to yard the bids up really well when I put them on, not uncomfortably, just deliberately) and they don't want to lay flat (want to roll), plus sometimes when taking off the bib the stretching makes disconcerting little ripping sounds down around the front strap anchor area, although in 20 rides I've seen no indication that anything is coming apart. On the bike, no issues with the straps- they disappear, just as one would hope.

Overall, love them. Just bought a second pair so I will never be caught without a pair because it's in the wash.