Puma 917 Lo Shoes: The Puma 917 Lo Shoe takes design references from the original Speed Cat Mid and Future Cat Mid. The outsole and foxing tape wrap up, creating a cylindrical heel shape; the sole design is fairly smooth with grooves rather than lugs; the strap on the Mid provides ankle support; the dip in the back collar line prevents Achilles tendon irritation; and the upper pattern is based on a U-throat and T-toe format to further reference the Speed Cat. Named after the Porsche 917, driven by Steve McQueen in the classic 1971 movie Le Mans, the Puma 917 Lo Shoes are worth every penny.