Size | From - Child (9-11) - 32 inch Chest, Child(12-13) - 34 inch chest, XS Adult - 34 inch chest, S Adult - 36 inch chest, M Adult - 40 inch chest, L Adult - 44 inch chest, XL Adult - 48 inch chest, XXL Adult - 52 inch chest, 3XL Adult - 56 inch, 4XL Adult - 60 inch, 5XL Adult - 62 inch chest |