Tim Kastenswrote a review of Castelli Alpha Ros Jacket - Men's on January 20, 2019
Familiarity: I've put it through the wringer
Fit: Runs small
Bottom line: not cheap, but well worth the investment (buy nice vs twice).
An incredible piece of garment technology that performs in every aspect. True to the ROS name, feels cozy in every possible cold weather condition (freezing, windy, rainy). I've used it at temps in the 20s with a single winter base layer (Assos winter skinfoil).
Love the many well-thought out details: smart collar design that keeps a snug (but not tight) fit designed around the neck (where it gets cold) to work with a more aggressive position on a road bike, sleeve finish to integrate with gloves, long back to protect from cold/wet, snug cut that may feel strange standing up straight, but perfect once in the saddle.
As always with Castelli - one size up.