Neck - Lay your collar flat. Measure from button hole to button hole on the inside of the collar.

Length - Measure from the top of where your shoulder seam connects to your neck to the very bottom of your shirt.

Chest - Measure from armpit seam to armpit seam across the front of your chest.

Shoulder - Measure from your shoulder seam (where the shoulder fixes to the arm) to shoulder seam, close to your neck/collar.

Sleeve - Measure from your shoulder seam to the very end of your wrist collar.

Bicep - Measure across (approximately four centimeters from your shoulder seam) with your shirt laid flat.