Fender Cover Sock For F1 G4 NF4 - Navy Blue £12.95 Quantity: at £12.95 each Add To Basket 0 in your basket View Basket Checkout Fender Cover. Made of soft texturised and elasticised polyester fibre with anti-abrasion weaving. UV-resistant and washable. For polyform models F1, G4, NF4. Measurement size for other models 190 x 640mm + or - 10%. Colour: Navy Blue. Black Socks also available.