Natrapel 8hr 3.5 Pump - Natrapel 8-Hour insect repellent provides 8 hours of DEET-Free protection. Fisherman friendly, our new 8 Hour formula will not burn your fishing line! Enjoy the outdoors longer without the worry of DEET. Specially formulated with 20% picaridin, the non-greasy Natrapel 8-Hour provides effective protection from mosquitoes, black flies, ticks and more! Picaradin formula is recommended by the CDC to repel insects carrying illnesses such as West Nile Virus and EEE.