Star Brite 81964X Waterproofing, 1/2 Gal.

Waterproofing + UV & stain protection for boat covers, car covers, bimini tops, sail covers, tents, jackets, backpacks, boots, awnings & patio covers. It does not change the breathability, color, or feel of fabric.
Great for use on new fabrics, greatly extending their service life by providing an additional barrier to moisture and damaging UV rays.