SPEED 600 returns in its fastest version yet. Built on the fundamentals of a great running shoe, SPEED 600 pairs PUMA's best running tech with lightweight design. A full-length PROFOAM midsole gives you instant cushioning while HYBRID Foam ups your energy return. Propel faster with PROPLATE for a smoother toe-off, and stay grounded with our SPEEDTRACTION outsole for maximum grip and traction.