Adidas Porsche Design SIn Spring/Summer 2007 and adidas introduces an innovative hi-tech sport and design orientated sport performance collection for men. The Adidas Porsche Design is part of this line of shoes that combines fully functioning luxury materials such as jacquard, lycra, microfiber and cashmere with sport-specific technologies like CoolmaxÂ®, 3XDRYÂ® and c-changeÂ®, and Formotionâ¢. The Spring/Summer 2007 Porsche collection includes the exclusive leather driving shoe with an asymmetrical outsole design that ensures a perfect grip and feeling. A softly rounded heel construction ensures a smooth transition of pressure from heel to toe during braking and acceleration. Fitting Notes: Adidas shoes are often narrow. You may want to consider a half size larger than your normal shoe size, especially if you have wide feet.