First, find your old shirt which fits you well enough. From there you need two measurements namely full chest and the shirt length.(āĻāĻĒāύāĻžāϰ āϝ⧠āĻļāĻžāϰā§āĻ āĻāĻžāϞ āĻĢāĻŋāĻ āĻšā§ āĻāĻŽāύ āĻāĻāĻāĻŋ āĻļāĻžāϰā§āĻ āύāĻŋāύ āĻāĻŦāĻ āϏā§āĻāĻžāύ āĻĨā§āĻā§ āĻĻā§āĻā§ āĻŽāĻžāĻĒ āϞāĻžāĻāĻŦā§, āĻāĻāĻāĻŋ āĻšāϞ āĻŦā§āĻā§āϰ āĻŽāĻžāĻĒ āĻāϰā§āĻāĻāĻŋ āĻšāϞ āĻļāĻžāϰā§āĻ āĻāϰ āĻĻā§āϰā§āĻā§āϝ)
Lay the shirt flat with buttons fastened. Then measure from side to side and double the measurement across the chest. Say if you get 22 inches for the half chest, then after doubling it you will get 44 inches, so this will be the Full Chest. (āĻļāĻžāϰā§āĻ āĻāϰ āĻŦā§āϤāĻžāĻŽ āϞāĻžāĻāĻžāύ⧠āĻ āĻŦāϏā§āĻĨāĻžā§ āϏā§āĻāĻžāĻā§Â āĻĢā§āϞā§āϝāĻžāĻ āĻāϰ⧠āĻŦāĻŋāĻāĻŋā§ā§ āύāĻŋāύ āĻāĻŦāĻ āĻāĻŦāĻŋāϰ āĻŽāϤ āĻāϰ⧠āĻŦā§āĻā§āϰ āĻāĻ āĻĒāĻžāĻļ āĻĨā§āĻā§ āĻāϰā§āĻ āĻĒāĻžāĻļ āĻĒāϰā§āϝāύā§āϤ āĻŽā§āĻĒā§ āĻĻā§āĻā§āύ, āĻāĻĻāĻžāĻšāϰāĻŖ āĻšāĻŋāϏā§āĻŦā§ āϝāĻĻāĻŋ ⧍⧍ āĻāĻā§āĻāĻŋ āĻāϏ⧠āϤāĻžāĻšāϞ⧠āϏā§āĻāĻžāĻā§ āĻĻāĻŋāĻā§āĻŖ āĻāϰāϞ⧠ā§Ēā§Ē āĻāĻā§āĻāĻŋ āĻāϏāĻŦā§ āĻāϰ āĻāĻāĻž āĻšāϞ āĻŦā§āĻā§āϰ āĻŽāĻžāĻĒ)
MeaÂsure along the back seam of the shirt, startÂing at the lower neck seam until the botÂtom hem. Say if you get 30 inches, then this is the shirt length. Now find the perfect size according to your full chest and length. For example: if your full chest is 44 inches and length is 30 inches, then Size M will fit you.(āĻļāĻžāϰā§āĻ āĻāϰ āĻāϞā§āĻā§ āĻĒāĻžāĻļā§, āĻāϞāĻžāϰā§āϰ āύāĻŋāĻ āĻĨā§āĻā§ āĻāĻŦāĻŋ āĻāϰ āĻŽāϤ āĻāϰ⧠āĻŽāĻžāĻĒāϤ⧠āĻšāĻŦā§, āĻāĻĻāĻžāĻšāϰāĻŖ āĻšāĻŋāϏā§āĻŦā§ āϝāĻĻāĻŋ ā§Šā§Ļ āĻāĻā§āĻāĻŋ āĻāϏ⧠āϤāĻžāĻšāϞ⧠āĻāĻāĻž āĻšāϞ āĻļāĻžāϰā§āĻ āĻāϰ āĻĻā§āϰā§āĻā§āϝāĨ¤ āĻāĻŦāĻžāϰ āĻŦā§āĻā§āϰ āĻŽāĻžāĻĒ āĻāĻŦāĻ āĻļāĻžāϰā§āĻ āĻāϰ āĻĻā§āϰā§āĻā§āϝ āĻ āύā§āϝāĻžā§ā§ āĻāĻžāϰā§āĻ āĻĨā§āĻā§ āĻāĻĒāύāĻžāϰ āϏāĻžāĻāĻ āĻā§āĻāĻā§ āύāĻŋāύāĨ¤ āĻāĻĻāĻžāĻšāϰāĻŖ āĻšāĻŋāϏā§āĻŦā§ āϝāĻĻāĻŋ āĻŦā§āĻā§āϰ āĻŽāĻžāĻĒ ā§Ēā§Ē āĻāĻā§āĻāĻŋ āĻāĻŦāĻ āϞāĻŽā§āĻŦāĻžā§ ā§Šā§Ļ āĻāĻā§āĻāĻŋ āĻšā§ āϤāĻžāĻšāϞ⧠āϏāĻžāĻāĻ M āĻāĻĒāύāĻžāϰ āĻāύā§āϝ āĻ āĻŋāĻ āĻšāĻŦā§)