Worry less about pesky mosquitoes and ticks and spend more time enjoying the outdoors with Repel brand. Repel Insect Repellent Sportsmen Max Formula 40% DEET repels mosquitoes, ticks, gnats, biting flies, chiggers and fleas. With 40% DEET, this insect repellent repels mosquitoes that may transmit the Zika, West Nile, Dengue and Chikungunya viruses. A reliable repellent for any family adventure, the easy-to-use aerosol spray stores nicely with outdoor gear or in your backpack. Take it everywhere for effective, long-lasting protection. DEET has been used as an insect repellent in the United States for more than 50 years. It’s recommended for those spending longer periods of time outdoors. Recommended by the Centers for Disease Control and Prevention for effective, long-lasting protection against mosquitoes, DEET is also an effective repellent for ticks. DEET-based products are available in a wide variety of Repel formulas, including aerosols, sprays and wipes.