Seeland Men's Shirt & T-shirts Size Guide
| Size | EU Size | Chest (in) |
| XS | 44 | 35" |
| Small | 46/48 | 37"/39" |
| Medium | 48/50 | 39"/40" |
| Large | 52 | 42" |
| XL | 54/56 | 43"/45" |
| XXL | 56/58 | 46" |
| 3XL | 60/62 | 48"/50" |
| 4XL | 62/64 | 50"/51" |
| 5XL | 66/68 | 53"/54" |
| Size | EU Size | Chest (in) |
| XS | 44 | 35" |
| Small | 46/48 | 37"/39" |
| Medium | 48/50 | 39"/40" |
| Large | 52 | 42" |
| XL | 54/56 | 43"/45" |
| XXL | 56/58 | 46" |
| 3XL | 60/62 | 48"/50" |
| 4XL | 62/64 | 50"/51" |
| 5XL | 66/68 | 53"/54" |
