It"s about time - a DEET-free insect repellent that really works. Natrapel 8-hour provides 8 hours of protection from biting insects and ticks, thanks to its CDC-recommended 20% picaridin formula. Unlike ineffective DEET alternatives, picaridin is the only formula that consistently shows equal or better performance than DEET in independent, clinical tests. Even better, natrapel 8-hour is completely safe on gear and will not melt jackets, fishing line and other synthetic materials. 6 ounce continuous spray bottle provides effortless, even application. 20% Picaridin is the recommended concentration to guard against diseases transmitted by insects.