In one embodiment of the sports shoe, the lock mechanism is provided in {TAIL ~ the form} of a housing sleeve displaceably mounted in the cuff part which adjustably accommodates {HEAD ~ the catch pin}, which means that the unit is compact in terms of its size but the lock mechanism is nevertheless strong in terms of retaining forces 
In one embodiment of the sports shoe , the lock mechanism is provided in { TAIL ~ the form } of a housing sleeve displaceably mounted in the cuff part which adjustably accommodates { HEAD ~ the catch pin } , which means that the unit is compact in terms of its size but the lock mechanism is nevertheless strong in terms of retaining forces
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