adidas Solar Glide Men's Running Shoes Blue/White/Collegiate Navy : Introducing the evolution of BOOST technology with the adidasA(R) SOLARGLIDE running shoes. This comfort and performance-focused design feature a SOLAR PROPULSION RAIL that works with the energized boost to provide a smooth, responsive run. ENGINEERED MESH upper fabric gives runners an adaptive fit around the foot and supreme flexibility, breathability, and overall comfort. Upper: Features an ENGINEERED MESH upper material around the forefoot for breathable, flexible comfort and added medial support. A supportive heel FIT COUNTER enables the free movement of the Achilles tendon. Midsole: Full-foot BOOSTA(R) midsole provides unmatched energy return and superior cushioning. TORSIONA(R) SYSTEM provides stability and propulsion throughout the midfoot phase of the gait cycle. Outsole: STRETCHWEB with CONTINENTAL(TM) rubber outsole with superior grip that adapts to every runner's foot strike by moving in harmony with boost to provide a smoother and more flexible ride.