Measurements should be taken directly on your body.
1 Chest: Measure your chest over the fullest part.
2 Waist: Measure your waist at the narrowest point.
3 Low hip: Measure your low hip around the fullest part of your hip.
4 Inside leg: Inside leg is measured from the crotch to the floor
Arm length: Measure from your shoulder point to your wrist.
Neckline: To find the perfect size on shirts when using ties/bows - Measure your neckline, the collar needs to fit properly.