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Castelli Nano Flex Pro Bib Tights

Sale $129.97 $199.95 35% off

Item # CST008V

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  • Black, S ($129.97)
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Item # CST008V

Go Nano.

Rumor has it Castelli is working on a portable pedal-powered force field that will protect you from rain and wind when you're riding, but it's still in the test phase, so they wheeled out the new Nano Flex Pro Bib Tights to keep you dry while they run through some more R&D. It's a simple, elegant solution to a difficult problem: how do you stay dry when you're riding in a rainstorm?

The obvious answer is "Wear hard-shell rain gear", but that leads to sweating and eventually sogginess. To prevent sweat buildup, Castelli built the Nano Flex from the fabric of the same name, a stretchy, warm, and soft blend of polyester and spandex, and then infused it with silicone nanofilaments, which make the fabric virtually waterproof without inhibiting breathability.  Accordingly, you can wear the Nano Flex Pro on its own when its drizzly or under Castelli's new Tempesta Pants — which are a more traditional rain shell — when conditions are really bad.

On the thighs, knees, and rear, Nano Flex Light overlays provide extra water resistance, while a waterproof and reflective band at the inner leg keeps wheel spray away from your legs and ankles. All the Nano Flex's panels are joined with reduced seams to eliminate bulk and discomfort, and Castelli's Progetto X2 Air chamois keeps you comfortable in the saddle even if the ride is grueling and the weather straight up nasty.

  • Foul-weather cycling tights for staying dry in the rain
  • DWR-treated material repels water while breathing
  • Chamois included for comfort through base miles
  • Reflective details help keep you visible under overcast skies

Tech Specs

Material:
[body] Nano Flex (polyster/spandex blend), [thigh, knee, and seat overlays] Nano Flex Lite
Fit:
form
Length:
full-length
Chamois:
yes, Progetto X2 Air
Bib:
yes
Reflective:
yes
Recommended Use:
cycling
Manufacturer Warranty:
1 year

Size chart

Castelli

Men's Apparel
 SMLXLXXL3XL
Chest 36.2in
(92cm)
37.8in
(96cm)
39.4in
(100cm)
41.3in
(105cm)
43.3in
(110cm)
45.3in
(115cm)
Waist 31.5in
(80cm)
33.1in
(84cm)
34.6in
(88cm)
36.6in
(93cm)
38.6in
(98cm)
40.6in
(103cm)
Hip 37in
(94cm)
38.6in
(98cm)
40.2in
(102cm)
42.1in
(107cm)
44.1in
(112cm)
46.1in
(117cm)
Inseam 31.9in
(81cm)
32.3in
(82cm)
32.7in
(83cm)
33.1in
(84cm)
33.5in
(85cm)
33.9in
(86cm)
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

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best rain tights ever

  • Fit: Runs small
  • Size Bought: small

Live in soggy Pacific NW,I used nano bib tights past 2 years, shoes and legs always wet after 1/2 hr. The "pro" tights are amazingly better, with brushed feeling fabric against skin, wind barrier on thighs, and impervious reflective "gaiter". combined with Castelli rain covers, shoes and legs dry after 2 hours in deluge! Love them down to 35d. Will save old nanoflex for spring/fall as they are ok for mist only... Get some if you hate being wet!!

Fits Like Skin - Warm - Handsome

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

Ok - Regular Castelli is 1x Smaller.. PRO Castelli is really 2x ~2.5x Smaller. DO NOT consider buying this garment if your not truly slim to begin with. You will not be happy with this. If you have to think about what that means for a moment then fugetabout it, this here bib/tight, ain't fo' you.. if your on the slim side go up 2 sizes, and lay off the pizza.

This my 2nd Castelli bib. The other is a Large NON-Pro short bib, it. fits great. I purchased an XL in this garment it also fits great albeit snugly at the calves. (for contrast all my other bibs and tights are Garneau and they are all Medium.

The calve zipper is longer then I need to be which I attribute to XL size inseam being a bit longer than my 32" inseam requires. Everywhere else was good. The inside is faced with a fleecy material and the chamois 1st rate. The straps have a rubber/silicon no-slip material facing them. I had on a thin liner so the straps where a bit fussy getting them to lay flat. I purchased through Amazon and got a great price. I am hoping to get out in these and in a Gabba2 (XL) I snagged a few weeks ago for a cool weather ride in during the holiday. I can't speak to the water shedding ability yet.

Great if you buy the correct size

  • Fit: Runs small

Castelli is expert at bad weather (Gabba) and Winter cycling.

The brilliance of these bibtights is the gray waterproof fabric used at the front and around the shin. This design prevents front-tire wheel spray from constantly soaking your tights around the lower leg. In conventional tights, with bottom cuffs tucked in, this water seeps down to your socks (capillary action), then soaks your feet. Riding with cold, wet feet is awful.

*These tights prevent all this if you wear the bottom cuffs OVER your winter booties.

So, if you are riding on wet roads or in the rain... remember to zip the bottom cuffs of these bibtights OVER your waterproof booties; so that the water is directed OVER your booties and away.

I can highly recommend the following winter booties for riding in wet weather: Pearl Izumi WxB, or Castelli Poggio, or Castelli Tempesta.

***Sizing:. With Castelli kit, usually size up +1 from your normal street size. Italian sizing is different. Here, size up +2. Trust me, I'm not kidding. They will still be snug in the thigh.

Best recommendation: Buy two sizes. +1 and +2. Keep the ones that fit best. Return the other (with tags on, etc, of course).

insanely small size

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

I'm 6'4" tall and thin (35" waist) about 190lbs. I could barely get the XL on. I am used to Castelli sizing their gear a size or two small, but this was crazy. I couldn't even zip the calf zippers, and I have pretty narrow calves.. Size up one or two sizes... I wanted to like this, but the fit was just crazy.

Yep, go up at least one size from the regular Nano tights.

I just tried them on at a LBS, and could not zip them up, and there is no way you could ever zip them with socks on. Not enough stretch in the one flexible panel. Bad design.

Yes, size up +2. Italian sizing -is- different.

And... @Guy, I don't think it is a bad design. It is a great design. Just no design can fit every body type.

Tip (online shopping reality): Order two sizes. Return the one that does not fit. (Or both if neither fit.) CC has an easy return procedure. Ride dry and happy out there!

FWIW I am a castelli small in everything from gabba jersey to bib shorts. I ordered these in small and they fit fine, calf closure included. 5' 9", 150 lbs.