Measurements are in INCHES all taken while garment was laying flat
Small - Back Shoulder to Shoulder 17.50 Torso Width 19, Front panel from side underarm seam to front seem by buttons (per side) 11.50, Length 23
Med - Back Shoulder to Shoulder 19, Torso Width 20, Front panel from side underarm seam to front seem by buttons (per side) 11.50, Length 23
Large - Back Shoulder to Shoulder 19.50 Torso Width 21, Front panel from side underarm seam to front seem by buttons (per side) 12, Length 24
XL - Back Shoulder to Shoulder 21.50 Torso Width 23, Front panel from side underarm seam to front seem by buttons (per side) 12, Length 25
XXL - Back Shoulder to Shoulder 22.50 Torso Width 24, Front panel from side underarm seam to front seem by buttons (per side) 13, Length 27