Fenderfits is the only fender cover manufacturer in the world that systematically uses Premium Quality High Bulk Acrylic Yarn. Fenderfits Fender Cover F-3/G-5 - Navy Blue. Color: Navy Blue. Warning: This product can expose you to chemicals including lead or di(2-ethylhexyl)phthalate or other chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm.