... 100% polyester new style breathable mesh insole feature:ventilated,lasting elastic,anti-bacterial,easy wash,quick dry TypeBreathable mesh insoleMaterial3D spacer mesh fabric, 100 ... and protectionWhat is 3D spacer mesh fabric?3D spacer mesh fabric was born from Germany, early to ... of high-elasticity, high-density kniting fabric. Unlike traditional fabric which is complanate,it is three-dimention ...