I have this jersey in black and it fits exactly like the description said -- a little snug through the pits and chest when standing up straight, but perfect on the bike. (Medium for 38.5 chest) Tried to get another in red (twice) but way too tight. The design, construction, and material, however, are fantastic. Never feels wet, dries almost immediately. Good strong pockets plus a zipper stash. Seriously handsome and functional.