Shadow 6000 "Planet Pack" sneakers Saucony first introduced the Shadow 6000 design in 1991 and quickly became a firm favourite among high-mileage Olympic Games runners. Today, the low-top pair is still as highly desirable thanks to the EVA cushioned heel support to offer greater shock absorption and comfort. Imported Composition Outer: Suede 100%, Nylon 100% Sole: Rubber 100% Lining: Fabric 100%