Stay visible and bite-free—these fluorescent shirts are coated in permethrin to cause ticks, mosquitoes, and other bugs to go haywire before they bite you. To help you stand out in places that are dusty, cloudy, or dimly lit, they are bright yellow and have refelective stripes. They meet Class 3 ANSI/ISEA 107 standards for people who need to be visible from at least a 1/4 of a mile away. Made of polyester, they're lightweight and moisture wicking, keeping you cool and dry. Product regulations restrict sales to the listed areas.