What Is Eva Material In Shoes

Nike likes to call theirs pylon but it is the same stuff whatever you call it.

What is eva material in shoes.

It is a plastic made by combining ethylene and vinyl acetate to create rubber like properties which can be used for shoe soles. Higher quality shoes will have around 40 percent vinyl acetate and 60 percent ethylene the lower the amount of vinyl acetate the more brittle and likely to crumble the midsole will be. This is because the material has many great attributes that provide support stability comfort and insulation. That is an elastomeric polymer that produces materials which are rubber like in softness and flexibility.

Eva or cm eva foam compression molded eva or ethylene vinyl acetate. Eva is what s known as a copolymer a combination of two different plastics and can vary widely in its ratios. Eva is a material favored by many shoe manufacturers particularly athletic footwear makers. Soft and flexible eva is technically a foam instead of a rubber as it is formed by expanding plastic and trapping pockets of gas air in various densities.

Eva is now the most widely used midsole material for shoes. A foamed midsole material that offers good cushioning and compression set. Most running and casual shoe midsoles are made from eva.