1. Basic material: EVA foam, PE foam, rubber foam, PU foam.
2. Top cover: Velet, cambrelle, visa, mesh, leather.
3. Optional plug: TPR pad, poron pad for shock absorption.
4. Optional poliyou layer for anti-bacteria and odor free.
3/4 arch support insole:
1. Top layer: fabric.
2. Bottom layer: EVA foam in any density.
3. Poron heel pad for shock absorption.