| 主权项 |
1. A system for a series of ski boots, comprising at least two ski boots having a same sized rigid outer shell, and in which at least one of the boots of the series of boots has the rigid outer shell comprising an internally inserted slipper, the slipper comprising a sole and side walls, so that the at least two ski boots comprising identical rigid outer shells are of different internal sizes, wherein the slipper is configured to be integrated between the rigid outer shell and an innerboot,
wherein the slipper has a hardness intermediate between that of the rigid outer shell of the boot and that of the innerboot, said innerboot having a more flexible structure than that of the rigid outer shell, wherein said side walls of the slipper are configured to cover a toe of a wearer at a front end and rise to and stop at an ankle level at a rear end of the slipper, and wherein the slipper includes an essentially vertical division which is a gap in the side wall of at least at one of the front end and the rear end, wherein the at least two ski boots comprise: a first ski boot including the innerboot in which no slipper is inserted in the rigid outer shell; a second ski boot with the slipper inserted between the rigid outer shell and the innerboot, so that the second ski boot is one size smaller than the first ski boot. |
