Heavy duty repellent with polymers that cross-link for maximum waterproofing and durability in a single application. For tents, boots, outdoor clothing, tarps, boat covers, back packs, golf bags, umbrellas, luggage, flags, and all 24/7 outdoor fabrics. Allows leather and fabric to breathe. Scent free when dried and cured. Safe for use on Gore-Tex and all waterproof breathable fabrics. Contains U-V-BLOCK to protect colors and fabric from sun damage. Contains a fungicide to protect the invisible coating from odors and discoloration caused by mold, mildew, fungus and algae.