你问的应该是boa鞋带系统。boa 是一种高性能鞋带系统，全称为 boa fit system，它通过一个旋钮（dial）、钢丝鞋带（通常是轻质但结实的材质）和导线系统组合，实现快速、精准且牢.
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Dalbo
