Tops Size ChartSIZEXXSXSSMLXLXXLXXXLTRSize3234363840424446 CHEST (cm)778185899397101105WAIST (cm)6165697377818589 CHEST: Measure for your chest circumference by placing the tape measure at the widest point on your chest. The point where your hand is at your waist. Measure around your waist from there. UNDERSIDE LEG LENGTH: Measure your leg length from the top of the fork to your ankles. *Keep the tape measure straight; You should be careful not to slide it so that it is parallel to the ground.