There are two things we can annually rely on as summer rolls into fall. First, we'll inevitably have a miserable day in the saddle where we're underdressed second, we'll be able to pull on Castelli's Free 3 jersey for the next ride. The Free jersey returns for another year of reliable insulation and moisture management equal to the temperatures of brisk October mornings and bright November afternoons, and the only change Castelli saw fit to make to it was an update to the jersey's graphical design. The restyled Free Jersey still consists of the same two fabrics. The body is made from Warmer fabric, one of Castelli's traditional go to materials for insulating clothing, and the sleeves and side panels use Warmer X Stretch fabric. Warmer places equal emphasis on insulation and breathability, because evacuating sweat and water vapor from a cyclist's microclimate is as important to staying warm as trapping body heat. The Warmer X Stretch is a more elastic version that fits tighter across the arms, eliminating flapping caused by excess material to maintain a race worthy fit. The jersey is similar to the Puro jersey Castelli makes for its pro teams, just with a more pronounced aesthetic flair and without small details like an additional, zippered rear pocket and a garage for the full length front zipper. It has three rear pockets for storage and reflective tabs on the back to help keep you visible in low light conditions.