EcoPedTM 16” CPE Shoe covers are made of Compressed Polyethylene (CPE) Film, commonly called Polylatex, which is made from a mixture of 65% Low Density Polyethylene (LDPE) and 35% Light Low-Density Polyethylene (LLDPE). Polylatex film is very lightweight and is a complex hydrocarbon chain. Polylatex has excellent resistance to chemical corrosion and its physical properties are not affected by either chemical or solvents