good cushion anti-vibration heating insulation damp-proof non-toxic and safe Eva ... plastic foam material, has a good buffer, seismic, thermal insulation, moisture-proof, anti-chemical corrosion, etc., and non-toxic ... better than polystyrene (foam) foam and other traditional materials, and in accordance with the requirements of environmental protection ... wider range of uses. EVA/PE/CR/NBR/PVC foam foot