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Item # CST2477

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Item # CST2477


We get excited any time a garment can serve multiple functions. It cuts down on spending, and in the case of the Castelli Ergo No Chamois Tights, it can do everything exceptionally well. The Ergo Tights come without a chamois, so you can use them over your favorite cycling shorts or for everything from Nordic skiing to running. The Ergos allow you to make the world your winter wonderland without fear of frostbite.

The Castelli Ergo No Chamois Tights place an emphasis on multi-disciplinary comfort. Featuring a design that's principle purpose is a comfortable, barely-there fit; the Ergo Tights' performance is achieved through the use of Castelli's popular Thermoflex fabric. Thermoflex gives you the benefit of having lightweight, stretchy tights that warm like a light jacket on your legs and fit like you're off to the races. Thermoflex 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 Ergo surface. This process provides a consistent warmth and dryness that you'll appreciate when it's in the 40s. The Ergo has added extra comfort by incorporating flat silicone ankle grippers and reflective camlock ankle zippers.

The Castelli Ergo No Chamois Tights are available in six sizes from Small to XXX-Large, and in the color Black.

Tech Specs

Claimed Weight:
261 g
Recommended Use:
cycling, training

Size chart

Fuji Bicycles


Geometry Chart


Altamira LTD

Seat Tube


Effective Top Tube








Head Tube


Head Tube Angle


Seat Tube Angle


Bottom Bracket Drop


Chainstay Length



44 44.0cm 51.5cm


36.3cm 72.1cm


72.0 deg 75.0 deg 6.9cm 40.5cm 97.1cm
47 47.0cm 53.0cm


37.0cm 74.1cm 13.0cm 72.5 deg 74.5 deg 6.9cm 40.5cm 97.7cm
50 50.0cm 54.5cm 54.0cm 37.0cm 76.0cm 14.0cm 73.0 deg 73.5 deg 6.9cm 40.5cm 97.6cm
53 53.0cm 56.0cm 56.0cm 37.9cm 78.3cm 16.0cm 73.5 deg 73.5 deg 6.9cm 40.5cm 98.6cm
55 55.0cm 57.5cm 58.0cm 38.9cm 80.1cm 18.0cm 73.5 deg 73.5 deg 6.9cm 40.5cm 100.1cm
58 58.0cm 59.0cm 60.1cm 39.7cm 82.1cm 20.0cm 74.0 deg 73.5 deg 6.9cm 40.5cm


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Here's what others have to say...

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

Great Product

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

I bought them for wind resistance as Oklahoma get very very windy. I really enjoy the fact that they can fit over my biking shorts and are still very comfortable. The zipper at the bottom of the pant leg though doesn't always want to stay zipped. That's my only real complaint. Wear long socks, it won't be a problem.


Great tights

  • Familiarity:I've used it several times

The fit and weight of these tights are great. I'm about 6'2" and usually have a problem with the crotch of pants being baggy by the time I get them long enough. The XXL fit great. I've used them on damp days when the temp is about 40 degrees and felt comfortable. Also when temps are in the upper 50's with a light top.

Sorry, but the SIZE CHART contains NO...

Sorry, but the SIZE CHART contains NO numbers! EVERYTHING says "in", with "cm" underneath, but there are no sizes or figures shown. Can you please fix this?

Thank you Wayne!

I'll bring this to the attention of our copy team.

In the meantime, here's a temporary fix for you.

Thank you Wayne! 
I'll bring this to the attention of our copy team. 

In the meantime, here's a temporary fix for you.

Excellent Tights

  • Familiarity:I've used it several times

Been wearing these on my last few rides. Temps ranging from 35-50F. They are perfect in that range. Surprisingly wind proof as well. These are very tight/stretchy. I am 5'11", 155lbs and got the medium. They fit really snug, borderline compression tights, but they feel great and are definitely the right size for me. Quality appears great.


Cozy Style!

    Having been less than satisfied with the fit of tights with chamois I've been on the lookout for no-chamois tights. i ordered these Ergo tights at a great price and with the advice of the live chat rep ordered the XL. Thank goodness! I'm 6'4" , 195lbs, and when these tights arrived they appeared to be children's XL. They fit perfectly and the materials are first rate.