Sizing: These are sized like dress shirts by neck and sleeve measurement. Like the originals, the bodies are roomy and can easily be tailored to fit the individual by tapering the sides. If you have never bought a dress shirt, it's simple: using a tape measure, measure the circumference of your neck just above the base. Then, extend your arm and measure from the center of your neck to the end of your wrist to get your sleeve length. Should this prove to be too difficult, then go to any department store (Macy's, Bacon's, Dillard's, JC Penny, etc, etc) and ask someone to measure you for a dress shirt. "M", "L", "42R" or "Big" won't allow us to fill your order. Imported.