JBS Wear Adult T-Shirt
| Size | Chest | SP Length |
| Small | 53.5 | 70.5 |
| Medium | 56 | 73 |
| Large | 58.5 | 75.5 |
| XL | 61 | 78 |
| 2XL | 63.5 | 80.5 |
| 3XL | 66 | 81.5 |
| 4XL | 68.5 | 82.5 |
| 5XL | 71 | 83.5 |
| 6/7XL | 76 | 85.5 |
JBS Wear Youth T-Shirt
| Size | Chest | SP Length |
| 2 | 35 | 41 |
| 4 | 37 | 45.5 |
| 6 | 39 | 50 |
| 8 | 41.5 | 54.5 |
| 10 | 44 | 59 |
| 12 | 46.5 | 63.5 |
| 14 | 49 | 68 |