Some guys just buy their shirts in small, medium, or large. No wonder they don’t fit so well. You should know your measurements—neck size and arm length—and not just for the sake of it. These numbers are the key to making you look better. If your collar is so loose it hangs off your neck, or so tight it makes your face blush, you’re stuck with it. So take action—get measured.
Make sure you can comfortably fit one finger between the collar and your neck. If two fingers fit, the collar’s too big.