Always be race-ready in this updated running shoe packed with innovative performance technology, superfoam cushioning and a durable XT-900 rubber sole.Perfect for: Designed as a race-day shoe, it's quickly proven itself much more, equally capable during long, moderate training sessions and sprints to the finish.Upper: The upper features an improved design of zonal engineered mesh and an integrated tongue for a connected, more secure fit, while the SRS (Super Responsive Sockliner) keeps every step comfortable.Midsole Drop: 8mm. Classified as a mid-drop measurement, it pushes your foot forward to support a more natural mid/forefoot strike.Sole: The re-engineered foot plate adds torsional rigidity while still maintaining flexibility through the forefoot. Neutral: provides soft, even cushioning with an emphasis on comfort during any activity Speed: transforms impact absorption into propulsive energy with ultralightweight cushioning Energy return: transforms every heel strike into responsive, explosive forward movement Lace-up style Removable, cushioned insole allows for custom orthotics SPEEDROLL always-forward geometry propels every stride faster from heel to toe PWRRUN PB cushioning puts ultralightweight energy and maximized bounce under every stride XT-900 rubber tread puts durable traction under every stride Textile and synthetic upper and lining/synthetic and rubber sole Imported