Minimalist competition road with medically-tested, scientifically-proven Body Geometry fit technology. Patented Body Geometry design is lab tested to assure blood flow to sensitive arteries (Sports Medicine University, Cologne 2005). Available in 2 widths for optimum fit and comfort. Hollow titanium rail. Carbon reinforced shell for stiffness & strength. Ultralight foam padding. Tough, light & water resistant. Micromatrix cover.