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When you roll up to the registration table just as an unexpected storm front unleashes swirling gusts of frigid air, you'll be happy you brought along your Castelli Men's Long-Sleeve Prosecco Wind Baselayer. Made from Castelli's breathable, medium weight Prosecco fabric, this base layer provides much appreciated warmth and wicks sweat out and away to keep you dry and warm as you settle into a rhythm 250m off the start line.

As good as the fabric is, the star feature of this baselayer is its Gore Windstopper windproof membrane on the front panel. Windstopper means it'll do its job no matter the conditions, so you'll be riding comfy when the wind whips up and the rest of the field is chilled to the bone.

  • A cycling baselayer for inclement conditions
  • Windproof front panel blocks the elements
  • Streamlined fit hides stealthily under a jersey
  • Medium weight fabric provides warmth
  • Reviews
  • Q & A

Very short arms

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

My arms are pretty normal in size, I think, but the sleeves on this base layer are very short.

I compared it to the non-"Wind" version of this item: lined up the seams under the arms and there is well over an inch in difference. Looks like a mistake by Castelli. (Attached pic exaggerates difference because of angle.)

Brr, cold wrists. Returning it.

Very short arms

works in a wide range of temperatures

  • Fit: True to size
  • Size Bought: large

5'7" , 170 lb
large fits well, snug without being too tight. Arms are fine for me and not overly long.
I would like it better if it was longer in the body with more of a drop tail.
The jersey breathes really well so there was only a reasonable buildup in the front under the windproof layer.
A very good base large as you would expect. Depending on how you layer it is very versatile.

Looks can be deceiving

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

When I initially got it I thought I made a mistake due to it being so thin. Then I tried it out in 0 Celsius with my Castelli Thermo Suit and it definitely kept me warm.