Black Duck® SeatCovers to fit Nissan Navara D23 NP300 King Cabs, RX, ST and ST-X. Miller Canvas is a leading online SPECIALIST retailer of the Black Duck brand of seat covers, select from 8 colours in heavy duty 12/15 oz canvas and 2 colours in Black Duck's new 4Elements or the comfortable stylish heavy duty Denim seat covers. Make sure you fit Black Duck® SeatCovers to give long term protection for the seats in your Nissan Navara NP300 D23 King Cab utes.