Fiberglass or clear coated carbon fiber. Most aftermarket companies use 2x2 twill weave carbon fiber like what is found on Lamborghini and Audi. Novitec also defaults to the 2x2 twill weave. Ferrari uses 1x1 plain weave carbon from the factory. Now Exotica Motorsports can custom order parts from Novitec in the Ferrari plain weave to match your factory carbon parts. The last image shown on this page is the comparison of 1x1 plain weave and 2x2 twill weave. 1x1 plain weave may add additional time to your order since this option will be custom built. Also available in fiberglass for painting.