Repel® Insect Repellent Sportsmen Max Formula 40% DEET repels mosquitoes ticks gnats and more. A tough repellent for any adventure this formula contains 40% DEET for effective long-lasting protection. This insect repellent is designed specifically for outdoor enthusiasts exposed to the toughest conditions and resists perspiration. The non-greasy formula repels mosquitoes that may transmit the Zika West Nile Dengue and Chikungunya viruses. The easy-to-use aerosol spray stores nicely with outdoor gear or in your backpack. This value pack contains two 8.125-ounce aerosol cans of repellent.