Arcteryx sizing runs a little big, you may want to buy a size down for a good fit. Going by the size chart I originally bought a Large, which was huge. Returned for a medium - fits great, not snug but trim, like a tailored shirt. Add the stretch factor and you end up with a very comfortable shirt.

highly mobile button-down shirt. Made with Invigor, a lightweight polyester fabric that has mechanical stretch and keeps you cool when things heat up. Hidden within its urban style are gusseted underarms and articulated elbows for added freedomMechanical stretch fabric for cool feeling summer comfort • Chest pocket with hidden security zip • Colour matched snap closures on front and cuffs • No-lift gusseted underarms • Articulated elbow • Colour matched snap closures on front placket • Patterened for ease of motion • Tonal embroidered bird logo on chest pocket and it weights 238g now the only thing i can't do is to put it around you and see how it would look... just check the sizes for it! If you have a strong built body ofcourse you'll be snug most of the time regardless of the garment...