Sinergia 3 Full-Zip Long-Sleeve Jersey - Women's

What Our Gearhead® Experts Are Saying:

"I run this as my default jersey for the entire shoulder season block, whenever the forecast sits in that middle ground between summer and winter kit. It's consistently the piece I don't have to think twice about grabbing."

Castelli built this jersey around a warmer fabric designed specifically for the temperature range where summer kit falls short, and winter kit runs too heavy. The regular fit prioritizes comfort and range of motion over an aggressive race cut, suited to consistent, dependable riding rather than maximal aerodynamics.

A lightweight YKK® Vislon® zipper glides easily for on-the-fly venting adjustments, while three rear pockets and a gripper elastic waist at the hem round out a build focused on all-day usability over any single standout feature.

This is the jersey built for the 12 to 18 degree Celsius window, ideal as the dependable foundation piece for fall and spring training blocks.