Fit Problem: The Chest
A tight shirt does not equate to a well fitting shirt. The buttons of a dress shirt should lay flat against the middle of the ribcage. There should not be any puckering of the fabric around buttons when standing with your arms down. Think of the placket of your dress shirt as a concrete sidewalk; it should remain straight on the edges.
A dress shirt should not feel like mummy wrapping. If you feel like you can’t reach your arms forwards, the shirt is too tight through the back and chest. The shirt should feel snug and the chest should fill out the shirt.
Remember: Pleats. They’ll expand to give you a greater range of motion.