Inov-8 F-Lite 230 Cross-Training Shoe 100% Textile and synthetic Imported S sole Met Cradle - A high performance, webbed upper delivers excellent breathability whilst securing the forefoot and metatarsal heads in a naturally congruent position. 2 Arrow Shoc-Zone - A 6mm differential gives you the best of both worlds: a lower heel ridge that keeps you closer to the ground and maximises running efficiency with the essential, minimal protection. 3D Air Mesh Upper - Made from a pliable material that conforms to the foot, blending comfort with a snug fit. EVA Midsole - Offers cushioned protection against impacts and shields you from potential injury. Micro-Thin Rubber - Blended with the midsole to give this barefoot trainer great comfort and protection.