Size / Ugg Men's
Men's Shoes
| US | UK | EU | JAPAN (CM) |
| 7 | 6 | 40 | 25 |
| 8 | 7 | 41 | 26 |
| 9 | 8 | 42 | 27 |
| 10 | 9 | 43 | 28 |
| 11 | 10 | 44 | 29 |
| 12 | 11 | 45 | 30 |
| 13 | 12 | 46 | 31 |
Men's Robes
| LABEL | CHEST (INCHES) | WAIST (INCHES) |
| S | 39-40 | 31-32 |
| M | 41-42 | 33-34 |
| L | 43-44 | 35-36 |
| XL | 45-46 | 37-38 |
| XXL | 48-49 | 37-38 |
| US | UK | EU | JAPAN (CM) |
| 7 | 6 | 40 | 25 |
| 8 | 7 | 41 | 26 |
| 9 | 8 | 42 | 27 |
| 10 | 9 | 43 | 28 |
| 11 | 10 | 44 | 29 |
| 12 | 11 | 45 | 30 |
| 13 | 12 | 46 | 31 |
| LABEL | CHEST (INCHES) | WAIST (INCHES) |
| S | 39-40 | 31-32 |
| M | 41-42 | 33-34 |
| L | 43-44 | 35-36 |
| XL | 45-46 | 37-38 |
| XXL | 48-49 | 37-38 |