Build me a foam mattress topper cover

Hi,


I need a cover for a foam mattress topper and looking to get a quote please. I want a waterproof outdoor bench type of material, with zipper to remove and wash when needed.


Black color
68 inches x 40 inches x 4 inches

68 inches x 20 inches x 4 inches
68 inches x 20 inches x 4 inches


How much for these 3 covers in black?


Thank you,

Frank