janodeswrote a review of Castelli Meccanico Zip Top - Long-Sleeve - Men's on November 10, 2015
Familiarity: I've used it once or twice and have initial impressions
Fit: Runs large
For the sake of the next guy looking at this jersey I thought I'd share my impressions.
First, the label has the material as 100% wool,not a blend as described. It is soft next to the skin can be worn as either base layer or mid and regulates temp and moisture as well as other merino layers I use. Second, the sizing chart is off by one size. I'm 5'8" 175lbs with a 44" chest. Because of the chest measurement I bought the XXL size as per the chart but probably could have gone with the XL. The XXL does work is looser than expected but still wearable for me. It might shrink when washed and be perfect as it recommends cold water wash.
The all black with red accent collar is just the understated, not covered with advertising, type of wool jersey I was looking for.