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The Castelli Women's Promessa Short-Sleeve Jersey fuses a feminine-specific cut with active moisture management, ensuring you stay nice and cool on the hottest summer rides. Its Stratus Plus dual-layer knit fabric pulls moisture off your skin for rapid evaporation, while mesh panels channel cool(er) outside air over your underarms to combat sweat build-up and overheating. The full-length zipper helps to ventilate your core on sweltering summer rides. Other cool features include a heat-transfer Castelli logo that pops nicely against the jersey's brightly colored background, as well as three back pockets for easy storage and retrieval of water bottles and energy gels.

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Excellent ventilation

  • Familiarity: I've used it several times

I got the white with red stripes and gray mesh. If you ride in hot weather, you need this jersey. It fits closely with a nicely nipped in waist. No flapping, but ventilation panels let plenty of air in. I was afraid the elastic hem would be a problem but it stays in place with no adjusting during a ride. Excellent pockets; low with a side zip on one. Order according to your measurements rather than size in street clothes. This needs to be a close fit.

Odd Fit

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

I returned this jersey because it was very short and tight. I normally wear a small in all athletic clothes and xs/s in fashion/street clothes, but I'm not sure even a medium would fit me.