Outback Trading Co Overlander Vest Size Guide
| Size | 1/2 Chest | Underarm | Length |
| Small | 53cm | 37cm | 65cm |
| Medium | 57cm | 38cm | 68cm |
| Large | 60cm | 39cm | 71cm |
| XL | 64cm | 40cm | 73cm |
| XXL | 68cm | 41cm | 75cm |
| XXXL | 71cm | 42cm | 77cm |
| 4XL | 73cm | 43cm | 78cm |
| Size | 1/2 Chest | Underarm | Length |
| Small | 53cm | 37cm | 65cm |
| Medium | 57cm | 38cm | 68cm |
| Large | 60cm | 39cm | 71cm |
| XL | 64cm | 40cm | 73cm |
| XXL | 68cm | 41cm | 75cm |
| XXXL | 71cm | 42cm | 77cm |
| 4XL | 73cm | 43cm | 78cm |