
An insole includes an abrasion-resistant fabric top covering adhered to a layer of molded modified dense polyurethane contoured to provide maximum shock absorption under those areas of the foot most subject to impact loading and a minimum thickness of polyurethane under the remaining portions of the foot. In addition, a series of grooves extending primarily parallel to the axis of the foot are formed in the lowermost surface of the shock absorbing polyurethane. These grooves provide volume into ...




