For jacket and vests. Be sure to measure over a shirt or light sweater for the most accurate reading. Measure just under the arms and across the chest at the fullest point of the chest.
For the jackets and tops are 15'' to 2.5'' longer in both sleeve length and body length sleeve length is measured center back of neck
Measure loosely around the waist at the preferred heigth of waist band at the natural waist for the most fits or slightly lower for low rise and boot cut. If measuring for chaps, measure over a pair of pants or jeans for correct sizing.