As anyone who has hunted in the summer knows, if you aren’t careful, a DEET insect repellant will “eat” the housing on a light in a season. Sawyer Premium Picaridin Insect Repellent, also known as the Fisherman’s Formula, has a similar effect to DEET, yet is safer on gear and equipment. It is also virtually odorless. At 20% active ingredient picaridin; this long lasting topical insect repellent is effective up to 8 hours against mosquitoes, ticks, biting flies, gnats, chiggers and fleas. 4 oz pump bottle.