Inov-8 Men's roclite 320 Trail Running Shoe 100% Mesh Synthetic sole Fascia band aids propulsion efficiency of the running cycle and gives a spring off the toe Meta-cradle upper support cradles fore foot behind metatarsal heads to provide a secure foot hold Supportive upper with 4-arrow midsole cushioning for highest level of comfort Structure lacing upper support cradles and distributes presssure across metatarsals. Highest level of upper stability Aggressive lugs offer good grip while treadpattern allows for comfort on mixed terrain