Jackets are available in U.S. sizes 34-60 and Reg/Short/Long length options. Pants are available in U.S. sizes 28-56 and Reg/Short/Long length options. Clothing can be exchanged after purchase but cannot be refunded. You can mix and match sizing of jackets and pants but you cannot mix and match colors. If you don't know exactly what pant you'd like the default is a drop 6" as noted below, e.g., a 40 jacket will be paired with a 34 pant. Getting the correct fit can be achieved in two ways: 1) Body Measurements; and 2) Garment Measurements.