SACH is an acronym for “solid ankle, cushion heel” and refers to
a compressible heel wedge that provides “pseudoplantar
flexion” after heel strike The rigid wooden keel provides mid
stance stability but little lateral movement The SACH is frequently
prescribed because it is cheap, light, durable, and available in various
heel heights so people can wear different shoes The SACH foot has
25% of efficiency (the ratio between energy released and stored)
Material:polyurethane and wood. Warranty:36 months