NECK

Measure a shirt with a collar that fits you well. Open the shirt and lay the collar flat. Measure from the center of the collar button to the far end of the button hole. The measurement in inches is your collar size. (Alternatively, measure around the base of your neck, inserting a finger or two between the tape and your neck to allow for comfort.)

CHEST

If possible, get a friend to help. With arms relaxed at your rsides, measure the fullest part of your chest, keeping the tape parallel to the floor.

ARM LENGTH

Bend your elbow 90 degrees and place your hand on your hip. Hold the tape at the center back of your neck. With a friend's help, measure across your shoulder to your elbow, and down to your wrist. The total length in inches is your sleeve length.

REGULAR, TALL, TAILORED, SHORT OR BIG

Regular- 5'8" - 6'0" tall, with hips and chest of equal width.
Tall- 6'1" - 6'3" tall, with a long torso or sleeve length.
Tailored- Coser-to-the-body fit throughout. Shirts are tapered from the chest to waist.
Short- 5'3" - 5'7" tall, with a short torso or sleeve length.
Big- 5'8" - 6'0" tall, with a less athletic profile. Pockets and other details increase in size for the right proportion.