| 摘要 |
The inner shoe in the form of a boot has, in the region of the instep, a deformable narrow zone of lesser resistance (2) which extends across the front part of the upper and on either side of the instep towards the end of the foot and defines a tongue-shaped zone (4). The upper (3) is thus able to flex forwards, while the tongue-shaped zone (4) is able to press against the instep without being retained by the upper.
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