Shoe with improved dual hardness heel-lift

摘要

The present invention relates to a shoe having an improved unitary dual hardness dowel-lift with superior wear and non-slip characteristics. The dual hardness dowel-lift includes a hard polyurethane top portion and a soft polyurethane bottom portion. The bottom portion is cast onto the top portion. The bottom portion is a softer material which possesses a hardness lower than the top portion as measured by the Shore A Hardness test, and preferably is a thermoset polyurethane elastomer.