Endure Fly spray stays active and keeps working, even in wet conditions. Farnam's Endure spray provides up to 14 days of fly control - its special conditioner binds to the hair shaft and won't sweat off! It protects against biting and nuisance flies and gnats and repels and kills deer ticks that may transmit Lyme Disease. This spray also provides repellency and quick knockdown of mosquitoes. The special sun-screening agent in this product protects against both forms of the sun's harmful ultra-violet rays. | Farnam Endure Sweat Resistant Fly Spray | Size 32 oz