Downpour Tall Adjustable
(Measurements are in CM)
| UK Size | US Men | US Women | Boot Height | Insole Length | Max Calf Circumference | Calf and Topline Circumference When Opened to Full Adjustment |
| 3 | 4 | 5 | 40 | 24.06 | 25.7 | 45.5 |
| 4 | 5 | 6 | 40 | 24.73 | 26.5 | 46.7 |
| 5 | 6 | 7 | 40 | 25.40 | 27.3 | 47.5 |
| 6 | 7 | 8 | 40 | 26.07 | 28 | 48.3 |
| 6.5 | 7.5 | 8.5 | 40 | 26.73 | 28 | 49.1 |
| 7 | 8 | 9 | 41 | 27.40 | 29.6 | 49.9 |
| 8 | 9 | 10 | 41 | 28.07 | 30.4 | 50.7 |
| 9 | 10 | 11 | 41 | 28.74 | 31.2 | 51.5 |
| 10 | 11 | - | 41 | 29.40 | 31.2 | 52.3 |
| 11 | 12 | - | 41 | 30.07 | 31.2 | 53.1 |
| 12 | 13 | - | 41 | 30.74 | 31.2 | 53.9 |