adidas Performance Men's Adizero Tempo 8 M Running Shoe 100% Textile/Synthetic Imported Rubber sole Weight: 9 ounces (size 9); Runner type: stable; Stack height: 29.3 mm / 19.3 mm (10 mm differential) boost 's energy-returning properties keep every step charged with an endless supply of light, fast energy Open mesh upper for maximum breathability; Synthetic overlays for added support Coolever mesh lining for superior moisture and heat exchange between the foot and the outside air; TORSION SYSTEM for midfoot integrity STABLEFRAME controls and maximizes energy; ADIWEAR outsole offers the ultimate in high-wear durability; Continental Rubber outsole for extraordinary grip in wet and dry conditions