Free RN 5.0 sneakers Made for running lovers, the Free Rn 5.0 is a lightweight minimalist shoe that performs well on runs of short distances. They ensure a flexible fit with their lightweight fabric construction, while the rubber sole keeps the foot locked in place, and secure, in the heel. Imported Composition Outer: Polyurethane 100%, Fabric 100% Sole: Rubber 100% Lining: Fabric 100%