Boosted up and serious, the Alpina ECL Pro Marathon classic boots were designed to meet demands of double-poling marathon courses. Greater stability out of tracks compared to standard classic race boots, and warmer as well.
- A boosted up version of the popular Alpina ECL Pro classic boot
- Inner boot laces up higher than the ECL Pro
- External heel counter is extended to improve control
- The medial heel counter is nearly as high as a skate boot to maximize stability when out of tracks
- Thinsulate insulation
- NNN Xcelerator sole
Alpina Race Boot Size Chart
| EU Sizing | US Women's | US Men's |
| 36 | 5 | |
| 36 1/2 | 5 1/3 | |
| 37 | 5 1/2 | |
| 37 1/2 | 6 | 5 |
| 38 | 6 1/2 | 5 1/2 |
| 38 1/2 | 6 2/3 | 5 2/3 |
| 39 | 7 | 6 |
| 39 1/2 | 7 1/2 | 6 1/2 |
| 40 | 8 | 7 |
| 40 1/2 | 8 1/2 | 7 1/2 |
| 41 | 9 | 8 |
| 41 1/2 | 9 1/3 | 8 1/3 |
| 42 | 9 1/2 | 8 1/2 |
| 42 1/2 | 10 | 9 |
| 43 | 10 1/2 | 9 1/2 |
| 43 1/2 | 10 2/3 | 9 2/3 |
| 44 | 11 | 10 |
| 44 1/2 | 11 1/2 | 10 1/2 |
| 45 | 12 | 11 |
| 45 1/2 | 11 1/2 | |
| 46 | 12 | |
| 46 1/2 | 12 1/3 | |
| 47 | 12 1/2 | |
| 47 1/2 | 13 | |
| 48 | 13 1/2 | |
| 48 1/2 | 13 2/3 | |
| 49 | 14 | |
| 49 1/2 | 14 1/2 | |
| 50 | 15 |
