Have had the chance to use this several times in late winter/early spring conditions. I ride near the ocean so while the temps have been 40-45, the cold, damp wind can be a factor. It is really performing well. Fights the wind as promised. Keeps me warm but doesn't bake. Not heavy and the fit is excellent. I'm 6'' 165 lbs and always buy an XL in Castelli. I can put a layer or two underneath and the fit is snug but not binding. Got the blue and it looks great!