• Measure your chest with your regular jacket on. Use that measurement as your chest measurement when selecting a size. If you click on the sizes the chest measurement the size fits will be displayed. I. E. Sizes Available: L (Chest 42-44) So if the measurement you have with your jacket on is 42" the large should fit over your jacket.
    Answered on 9/27/2013 4:05:28 PM by Jack from Sierra Trading Post