Patrick G.wrote a review of Castelli Trasparente 4 Long-Sleeve Jersey - Men's on April 22, 2018
Familiarity: I've used it several times
Fit: Runs small
This is perfect for those cooler days from about 40-60F, and I’ve been wearing it during our variable “shoulder season” where a ride starts around 38F and finishes around 60F. Once I’m warmed up this jersey works great in the cooler end of that range, keeping things warm without trapping heat and moisture, and a couple inches of opening the collar and all’s well as the ride finishes and temps have climbed. I wear the Castilli “fishnet” undershirt under this jersey and its the perfect cool weather combo.
Like all things Castelli sizing runs small, but the 2XL was perfect for me