Caterpillar Men's Shirts & Jackets Size Guide
| Size | Chest (Approx) |
| XS | 32"-34" |
| Small | 35"-37" |
| Medium | 38"-40" |
| Large | 41"-43" |
| XL | 44"-46" |
| XXL | 47"-49" |
| 3XL | 50"-53" |
| Size | Chest (Approx) |
| XS | 32"-34" |
| Small | 35"-37" |
| Medium | 38"-40" |
| Large | 41"-43" |
| XL | 44"-46" |
| XXL | 47"-49" |
| 3XL | 50"-53" |