| 摘要 |
<p>An arch support device (40) has a lower layer (42) of a semi-rigid material shaped to conform to the arch of a wearer's foot and to provide an arch supporting function when inserted in a shoe, a second layer (44) of cushioning material, such as foam, secured to the upper face of the lower layer (42); and a third, cover layer (46) of pliable material secured over the second layer. At least one of the lower (42) and foam (44) layers is of variable thickness.</p> |
