Sawyer"s 30% DEET aerosol insect repellent is great for outdoor recreational use including hunting, fishing and camping. Treatments repel ticks, chiggers, and mosquitoes that might be carrying West Nile Virus. Treatments can be applied to skin and/or clothing. Does not damage cotton, wool and nylon. Do not apply to acetate, rayon, spandex, or other synthetics (other than nylon), furniture, plastics, watch crystals, leather and painted or varnished surfaces.