Find your jacket size by measuring under your arms, around the fullest part of your chest, with arms relaxed at your sides.

Measure around your natural waistline while standing straight, keeping the tape comfortably snug for accuracy.

Measure from the center of the neck (collar seam) straight down to the bottom hem to determine your back length.

With arms at your side, measure from the base of your neck to the point where your wrist and hand meet.