Whether insects fly, crawl or climb, they won’t want anything to do with our protective clothing. Our partner, Burlington® Labs, has developed a patented process that binds Permethrin, an odorless, water-based, biodegradable compound, directly to our clothing so you don’t have to apply repellent on your skin. This effective, long-lasting technology is harmless to you and the fabric. To protect yourself from irritation and air-borne diseases, insist on NO FLY ZONE™ clothing from Simms.