With your arms relaxed at your sides, measure directly under your arms around the fullest part of your chest and shoulder blades.
Big (Wider pockets)
Tall (Proportionally placed pockets)
With your arm bent at a 90-degree angle, place your hand on your hip. Measure between the shoulder blades, along the shoulder and elbow, then down to your wrist.
Big (Larger body, armhole and cuff openings)
Tall (Sleeves 1 inch longer than standard)
Measure around the thickest part of your neck, or base of your neck, keeping one finger between the measuring tape and your neck to allow for comfort.