Code: WINTER50—Spend $250, Save $50 »

Castelli Nanoflex Bib Shorts

Out of Stock

Item # CST2473

Don't worry though, we have a lot more Men's Bib Shorts in stock than that.

View Similar Products
Item # CST2473

Description

You simply can't beat the feeling of quality bib shorts. Unfortunately, they usually aren't practical to wear year round. However, Castelli has changed this with its Nanoflex Bib Shorts. With a fleecy lining and a water-resistant exterior, the Nanoflex Bib Shorts answer the call of the winter with resounding vigor.

Castelli's Nanoflex Bib Shorts are made from the exclusive Nanoflex fabric. Nanoflex is a water-resistant version of Castelli's ultra-warming Thermoflex fabric. The transformation process occurs when the Thermoflex fabric is coated with millions of nanofilaments to create a water-repellant surface. Water beads and slides when it comes in contact with Nanoflex, and, all the while, the Nanoflex Bib Shorts retain their warmth and wind-blocking prowess. Besides protecting you from rain and snow, the Nanoflex Bib Shorts give you the benefit of having lightweight, stretchy shorts that warm like a light jacket on your legs, and fit like you're off to the races. The Nanoflex also features a fleecy inner-lining that traps a layer of warm air on your skin while it wicks away moisture to the quick-drying Nanoflex surface. This process provides consistent warmth and dryness that you'll appreciate when it's in the 40s. The Nanoflex adds extra comfort by incorporating breathable mesh bib straps and the Kiss 3 pad. The Kiss chamois uses a seamless construction of brushed microfiber to avoid any chafing, and the pad is anatomically shaped to help follow your movements. The Kiss 3 also features a variable density design with more padding where you need it, and less where you don't. For winter use, we recommend covering up all of that exposed surface area with Castelli knee or leg warmers.

The Castelli Nanoflex Bib Shorts are available in six sizes from Small to XXX-Large and in the color Black.

  • Nanoflex water-resistant fabric
  • Kiss 3 chamois

Tech Specs

Material:
[body] NanoFlex, [straps] mesh
Fit:
anatomic
Bib:
yes
Manufacturer Warranty:
30 days

Size chart

Castelli

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)
Inseam
31.5in
(80.0cm)
32in
(81.3cm)
32.3in
(82.0cm)
32.8in
(83.3cm)
33in
(83.8cm)
34.8in
(88.4cm)
How to Measure:
For best results, take measurements over your underwear.
Chest:
Measure under your arms, around the fullest part of your chest.
Waist:
Measure around your natural waistline, keeping the tape a bit loose.
Hip:
Measure around the fullest part of your body at the top of your legs.
Inseam:
Using pants that fit well, measure the crotch seam to the bottom of the leg.

Reviews & Community

REVIEWS

Write a review

    Add a:
  • Photos
  • Videos

No file chosen

Rather attach a photo from your computer?

Familiarity:

Product Fit:

Runs smallTrue to sizeRuns large

Add Your Size

incm

Height (ft, in):

Weight (lbs):

Size Purchased:

Only jpg, jpeg, png, gif or bmp files please.

Submit ReviewCancel

Here's what others have to say...

Avg. ride time: 7h 25m per week
  • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.
45

Keeps me warm, not sweaty

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

Perfect for the cooler days close to 40F. However they are not the best choice for long days in the saddle as they hold your man bits a little too tight. Material and stitching is great, however decals began to peel off within the first dozen uses.

25

I HATED them! Too painful to wear.

  • Familiarity:I've used it once or twice and have initial impressions
  • Fit:True to size

I got these on sale from the awesome folks at CC during the end of the year sales. In fact I bought quite a few pieces since the prices were so awesome. This unit however was a complete and total loss. I used it twice, both 30 mile rides, and by the end of the ride the chamois had worn a line on the inside of my leg near or I should say underneath my "bag of goods". I'm talking burning searing I can't go another mile kinda pain. The marks on my leg took 3-4 days to go away both times, which was really uncomfortable. The fabric was really cool. They seemed a bit long like the other reviews have indicated, but no big deal. They were reasonable warm for a bib short and the fit was true to size for Castelli! That means if you are an L-XL look at the 2XL. For me at first glance this seemed like a great bargain for the sale price of about $50. WRONG!! I threw $50 away! I won't wear them again. Strike that, I can't wear them again. Not worth the pain. Went with the Assos tiburu and WOW what a difference. That is the gold standard for me. That is another review. Save your money, IMO, buy something else.

Avg. ride time: 3h 27m per week
  • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.
45

Warm & Cozy

    These are great for late fall/early winter rides. Paired with leg warmers it's like riding with tights but the fit is much better. I wish I had bought a pair of these a long time ago--very comfy and keeps the legs nice and warm.

    As others have stated the legs on these are loooong. I am 6'2 and take a size XL for all Castelli bibs--including these. The legs go all the way down to my knees, even for a tall guy like myself. Doesn't bother me because if I'm wearing these I'm going to be wearing knee warmers or leg warmers underneath. But if you plan on going without warmers, these will definitely spoil your hard- earned tan line.

    On the positive, the straps on these are super stretchy and comfy. Might buy a second pair.

    45

    Regular thermal or Nanoflex shorts?

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

    Other reviews have covered these shorts exhaustively. I've purchased four over the past 2 years and have these comments:
    1. I'm 5'4" and weigh 127 lbs. Live in Seattle and commute every day, rain and/or shine and these shorts endure wear during wet/cold days here. The shorts have held up very well except for the iron-on logos. Believe it or not, I've taken to gluing the "undone" corners of the lettering with fabric/vinyl cement (I must have some serious OCD or past life regression issues. Probably both).
    2. Castelli's "Care" info on their website says that the DWR and Nanoflex treatment will hold up for "40 - 50 washings". I haven't washed them as many times but repellency seemed quite a bit less after 5 or so washings. Castelli recommends washing (machine or hand), then tumble dry under low heat for 20 minutes or pressing with a warm iron. I've tried both and the results are OK. What works best for me is to wash with NikWax Tech Wash followed (while wet) with NikWax TXDirect, then tumble dry for 20 minutes. Afterwards, repellency was like-new and haven't had to be re-treated so far this winter.
    3. Fit: When new, the shorts were very, very tight. Over time, they've loosened up a little bit. I'm glad I had stuck with size small as opposed to sizing up.
    4. Call of Nature: it would be helpful if if the bib fronts were cut a little lower to facilitate irrigation.
    5. Other: The leg grippers do a great job with knee or leg warmers (especially the Nanoflex warmers and their silicone grippers). The hems of the shorts don't ride up over the warmers wet or dry. I've used them without the warmers and the grippers didn't irritate me (full disclosure: I shave). Inseam length: these are cut longer than my Pearl Izumi PRO shorts. However, the longer length is a nice interface with the Nanoflex warmers. Again, the grippers stay put and the warmers don't sag.
    6. Pad: three of my shorts purchased last year have the same pad (Kiss3). The 4th pair, purchased in November this year, has a different pad labeled Air which. may be the Kiss Air spec'd for the current Nanoflex 2 shorts. In any event, these Kiss pads hold up well in cold/wet conditions.

    Overall: So far, the Nanoflex bib shorts have been a great value. If you had the fortune of purchasing these during the recent 50% Off Sale, they're unbeatable. I've several thermal shorts from other companies that haven't seen use in wet or transitional conditions last winter or this winter because the Nanoflex shorts have the range the others don't possess.

    55

    Good Price, Cool Bibs

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

    Picked these up for cold winter riding. True to the description, there's a little extra material and lining to keep me warm on cold days. Perfect combo for leg warmers on a cold day. They are a bit longer than normal castelli bibs on the thighs, but that matches well for leg warmers. Definitely not a summer bib!

    55

    Great quality and fit

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

    Thin, light but quite warm and it breathes well. xxl fits just fine. I wear XL Pearl Izumi bibs but have to go up a size for Castello. Legs are a bit longer than most but not a issue at my height.

    Avg. ride time: 8h 16m per week
    • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.
    55

    Great winter bibs

    • Familiarity:I've used it once or twice and have initial impressions
    • Fit:True to size

    Wanted to try out some winter weight bibshorts, for more versatility with leg and knee warmers. These have performed very well, have used in low 40s to 50s temps with both knee and leg warmers. Nice chamois, fit well (33"W = large per table) and would recommend. They fit a little smaller than the summer versions, I've found the same thing with my Castelli knickers. Competitive Cyclist had great price and service. Logos, per Castelli fashion (!) have started to fall off already..

    55

    Almost perfect!

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

    Great winter/fall shorts. Medium is roughly the equivalent of an Assos medium so be ready for a tight fit off the bike; once on the bike, they fit perfectly. Can get them wet (within reason) and they won't get soaked. With medium embrocation, an alternative to knickers above 45 degrees.

    55

    buena experiencia

      La primera vez que compro en backcountry y ha sido una experiencia muy satisfactoria, buen entedimiento con los agentes de chat y muy resolutivos, lo recomiento totalmente

      55

      Excellent winter bibs.

      • Familiarity:I've used it once or twice and have initial impressions
      • Fit:True to size

      I've worn these on a 50-60 day and they were great. They were comfortable the whole ride. I never felt cold and it didn't get too hot. The Kiss 3 chamois is pretty comfy. I usually wear a large in Castelli and these were spot on in a large. The length seemed a little long all the way to the knee. Once I was on the bike it settled in just above the knee and was perfect.

      Avg. ride time: 4h 49m per week
      • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.
      25

      Goofy Giro leg grippers

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

      I have "average" size quads not noodle legs. I have never had a pair of cycling shorts/bibs be loose at the leg grippers. This pair it is which at least on me does not look right and it is too long and actually comes down on my knee. Also I wear a large in a Craft bib yet this Castelli bib short in a XXL is still kind of tight in the waist (I typically wear a 36 waist pant). Go figure. I wanted to like these but I will be returning them.

      55

      Great bib shorts

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

      For me the fit of these shorts is the same as other Castelli shorts or tights. For me they are true to size. I got these shorts because I fell in love with Castelli bib tights for winter riding. The quality, fit and finish are superb. They are very comfortable for long rides. I would recommend to my friends and I would buy them again.

      55

      Great Bibs for colder weather

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

      Love those bibs from temperatures in the low 30's to mid 60's they are very confortable and keep you just the right amount of warm. I just did the Sebring 12/24 hour bike race with them starting temperature of 34 F and they felt great had no problems with them all day. after 12 hours and 233 miles they were still comfortable. it runs small normally I buy size L for my Bibs but hose were great at XL.

      Avg. ride time: 11m per week
      • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.
      45

      Weird sizing but good product

      • Familiarity:I've used it several times

      The size is as usual a bit off. I am a small in Assos/PI/Capo but a medium was pretty snug. The leg grippers were my primary sticking point as they are just too tight compared to the rest of the product. Overall though it does exactly what it is supposed to and is comfortable. The pad is one of the better ones on the market and the temperature tolerance is incredible. I use this for races in the single digits with tights or for spring rides when it starts at 45 and ends at 60. The legs are longer but that is a nice addition since it is a colder weather option, actually i liked the length after a few rides.



      Overall just make sure to get your sizing right, but it will expand after a few rides so give it some time after the first try on.

      Avg. ride time: 21m per week
      • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.
      55

      Castelli's best

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

      In my opinion at least. These have held up the best. The Kiss3 chamois is more than adequate. Their performance in wet weather is simply impressive. Coupled with a pair of Nanoflex leg warmers and you are good to go into the 30s/40s.



      Unlike my other Castelli pieces, the stitching has held up quite well.



      Order your typical Castelli size, they tend to run small compared to other brands.

      Avg. ride time: 10h 35m per week
      • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.
      55

      Very nice product

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

      I'm a bib convert. I've worn them a couple times and have found them very comfortable. They run a tad small compared to another brand (sample size of one other brand). I haven't ridden them in rain yet and will keep you folks posted when I do.

      Avg. ride time: 20m per week
      • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.
      55

      works as advertised.

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

      I have used these on a couple extended rain rides. There is nothing worse on a rain ride than a soggy wet crotchular area with a soaked pad that feels like a wet diaper. Glad to report no soggy diaperness occurred. Water beads off like it is supposed to. Fits true to size. I am a size large in Castelli bibs, and a large was perfect here.

      Avg. ride time: 16h 24m per week
      • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.
      55

      Winter Bibs

      • Familiarity:I've used it several times

      These are really good winter bibs. The nanoflex fabric really does bead water like the description says. They are warm. They are tight enough to prevent leg warmers from slipping at all. The legs are really long (they go down until right above my knees), but I like this in these bibs because it provides extra coverage when the weather is nasty. They have a good chamois that keeps my bottom happy on 4 hour rides. All-in-all I would recommend these bibs to anyone looking for bibs for when the weather gets cold or rainy.

      45

      Typical Castelli quality BUT .....

      • Familiarity:I've used it several times

      .... these shorts are crazy long! They are a full 8 cm longer in the leg than the 2 other pairs of Castelli bib shorts (same size) that I own. They are so long that the gripper irritates the back of my knees on multi-hour rides if I do not wear leg warmers. Other than the length, the fit is consistent with other Castelli products. The size guide in the specs is sensible.



      The nanoflex fabric is excellent and warm. I wear these comfortably in the single digits (celsius). The pad is comfortable and well-placed, and overall construction is of good quality. They are very strong value for the money.

      I agree, the legs are just a tad too long, if they used a different gripping system and were 2-3cm shorter it would go from good to exceptional product.

      Unanswered Question
      Avg. ride time: 32m per week
      • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.

      seems like they should make these in fluoro,...

      seems like they should make these in fluoro, no?