Dennis L.wrote a review of Craft COOL Mesh Superlight Sleeveless Baselayer - Men's on May 15, 2019
Familiarity: I've used it once or twice and have initial impressions
You want your base layer to fit snugly but not constricting for it to wick sweat away from your body. This one was loose. I’m 5’6”, 155 lbs. i normally use medium for base layers and race fit Jerseys. The small would be too tight for me based on size chart.