adidas Supernova Glide 6 Running Women's Shoes synthetic-and-mesh Shaft measures approximately Low-Top" from arch Textile upper with seamless mesh in forefoot for maximum comfort and lightweight flexibility. TORSION SYSTEM for midfoot integrity Air mesh lining for maximum breathability, and Continental rubber outsole for surefooted grip BOOST provides a higher energy return than any other foam cushioning material in the running industry. Boost's energy-returning properties keep every step charged with an endless supply of light, fast energy