How to Measure for Garments:

Chest
With arms relaxed at your sides, measure around your chest at the armpits, over the highest part of your chest and shoulder blades, keeping the tape parallel to the floor.
Waist
Measure around natural waistline below last rib and above hip bones. Don’t hold your breath.
Sleeve Length
Extend your arm straight out to the side. Measure from the center of the back to the wrist. For best comfort, round up to find total inches.
Inseam
Measure from base of crotch seam to top of shoe to be worn.