Men's & Unisex Sizing
| Shirt Size | Chest Size (inches) | Chest Width (inches) | Length (inches) | Chest Size (cm) | Chest Width (cm) | Length (cm) |
| Small | 34/36 | 18 | 28 | 86/92 | 46 | 70 |
| Medium | 38/40 | 20 | 29 | 96/102 | 51 | 72 |
| Large | 42/44 | 22 | 30 | 107/112 | 56 | 75 |
| XL | 48/48 | 24 | 31 | 122 | 61 | 77 |
| 2XL | 50/52 | 26 | 32 | 127/132 | 66 | 80 |
| 3XL | 54/56 | 28 | 33 | 137/142 | 71 | 82 |
| 4XL | 58/60 | 30 | 34 | 147/152 | 76 | 84 |
| 5XL | 62/64 | 32 | 35 | 157/162 | 81 | 88 |
Women's Sizing
| Shirt Size | Chest Size (inches) | Chest Width (inches) | Length (inches) | Chest Size (cm) | Chest Width (cm) | Length (cm) |
| Small | 34/35 | 17 | 25 | 86/89 | 43 | 64 |
| Medium | 36/38 | 18 | 26 | 91/97 | 46 | 66 |
| Large | 39/41 | 19.5 | 27 | 99/104 | 50 | 69 |
| XL | 42/44 | 20.5 | 27.75 | 106/112 | 52 | 71 |
| XXL | 45/47 | 23 | 28 | 114/120 | 59 | 72 |
Kids Sizing
| Shirt Size | Chest Width (inches) | Length (inches) | Chest Width (cm) | Length (cm) |
| Extra Small (3-4 Years) | 14 | 18 | 35 | 46 |
| Small (5-6 Years) | 16 | 20.5 | 41 | 52 |
| Medium (7-8 Years) | 17 | 22 | 43 | 56 |
| Large (9-11 Years) | 18 | 23.5 | 46 | 60 |
| Extra Large (12-14 Years) | 19 | 25 | 48 | 64 |