A white roll of this for canoe/kayak roof rack covers is in the garage. Trying this with a non toxic glue and a precise edge inking method.

UV Resistant Flagcloth Uncoated Oxford
3.5 oz. per sq yd. UV Resistant 200 Denier. Water repellent finish and superior ultraviolet resistance. The use of high tenacity yarns makes an attractive fabric, while maintaining even dye appearance and good screen printing capabilities.

Uses: Flags, Banners, Jackets, Bags, Tents, Stuff Sacks

http://www.seattlefabrics.com/nylons.html#UV Resistant Flagcloth Uncoated Oxford