Definition of midsole in English English dictionary
The layer of soling between outsole and insole Used on some outdoor boots to provide a layer of cushioning and on rock shoes to provide torsion rigidity and edging capability
The area of the shoe between the upper and outsole that's primarily responsible for the shoe's cushioning Most midsoles are made of foams: either EVA (ethylene vinyl acetate) or polyurethane EVA is lighter and more flexible than polyurethane, but it also breaks down more quickly Many midsoles also have additional cushioning elements such as air, gel and various embedded plastic units