Take the tape under the arms, closely around your body.
You should take a close measurement around your body at the natural waistline.
Take a measurement around your neck, and make sure the tape is taken skin-tight just below your Adam's apple.
Arm Length :
Measure form the center back of neck, over shoulder point to the wrist. During the measurement, keep your arms relaxed and elbow slightly bent.
Please measure from the edge of the shoulder socket, across the back to the same point on the other shoulder with your arms relaxed and down by your side. Remember the measurement should be taken just below the base of the collar.
Please measure down the center back from the base of collar to the length of jacket you want.
The measurement should be taken at the same position of the Chest, but you have to include both arms this time.
This is the measurement at the fullest part of your hips. It is usually approximately 7 inches below your waist. What you should do is to stand naturally with your heels together and relaxed. Find your hip bones and measure there. Pay special attention to leave a little room and not to pull the tape too tight.
Take a taut measurement from the lowest part of the crotch of your trousers down to the bottom line you want the trousers to be. Do consider the fit you desire over the shoes and never take this measurement on jeans.
Out seam :
Take a taut measurement from the top of the waistband on a pair of trousers down to the bottom line you want the trousers to be. Do consider the fit you desire over the shoes and never take this measurement on jeans.