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Whether you're lining up for an autumn barrier-hoopin' mud-fest, kicking up fallen leaves along winding stretches of black top, or weaving through lethargic city traffic, the Castelli Wind Base Layer Long-Sleeve Top will keep your core toasty.

  • SG0.6 Wind Fabric is stretchy for a next-to-skin fit without hindering movement
  • Ultra lightweight fabric also keeps cool wind at bay
  • Seamless construction and smooth shoulders prevent irritation

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nice, but...

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

really nice, but this runs really small. I can get away with a castelli small for base layers, vests and light jackets, but wear medium for jerseys and bibs. this in small is basically impossible for me to get on/off.

once its on, its amazing. but it aint easy.