Nikwax Spray-On Tent & Gear SolarProof 16.9 oz.

Took my tent out after two heavy downpours and the fly kept every drop out, no wet spots. The spray went on evenly and dried clear without that stiff, crinkly feel. UV protection is a nice bonus since I leave the awning up all summer.

My canopy finally survived a full weekend of storms without a single drip inside, and the bonus UV protection is a real plus for summer camping. It dried to a clear finish, too, so the fabric didn't look stiff or chalky afterward.

My old tarp was fading badly after one summer in the sun, and a single spray-down with this stuff has it beading water like it's brand new again. The 16.9 oz bottle covered my whole 4-person tent plus the awning, and the pump action made it easy to get an even coat without any messy drips.