| 摘要 |
Tread for the soles of long-distance ski boots (12), the tread consisting of grooves cooperating with mating ridges, the grooves and ridges being comprised in a sole (16) and in a plate (13) which is fitted to or forms part of a long-distance ski (10), the grooves (19-20) diverging from each other in the direction of the heel of the boot. |
