The PUMA Trionfo Mid Pro II is the most technologically advanced racing shoe ever produced for the professional driver, key advancements in light-weight materials results in the lightest racing shoe available today. The body of the Trionfo is constructed of Schoeller canvas, soft suede, and Nomex lining offering superior transpiration, weight reduction, and increased fire protection (TPP40). Asymmetrical lacing improves blood circulation, decreases lactic acid build-up (muscle fatigue), and improves heat dissipation within the foot. A ?tongue-less? body design reduces weight while improving conformation to shape and movement of the driver?s foot. A Carbon Fiber heel stabilizer provides centricity for the necessary heel-toe movement combined with a split heel design reduces weight, heat transfer, and vibration. FIA 8856-2000 and SFI 3.3/5 approved. Available in red, blue, and black. Sizes: 39-47.