Covercraft C16451TK Custom Fit Car Cover for BMW Z4 (Technalon Evolution Fabric, Tan) Fabric that provide an excellent protection value in all weather conditions Maximum protection against damaging UV rays thus protecting your paint and interior Polypropylene fibers are bonded into a durable 4-layer non-woven finish that includes a soft bi-component inner layer of polyethylene and polypropylene fibers Has bottom-edge elastic to hold the cover tight and is equipped with grommets for a cable lock and an additional grommet that can be installed to accommodate your vehicles antenna Custom-made to hug every contour of your specific vehicle and most of these made-to-measure covers have sewn-in mirror pockets