Sawyer Products Ultra 30 Insect Repellent Lotion Liposome-based repellent with 30 percent DEET -- great for use in the backcountry or backyard Effective against mosquitoes, ticks, flies, chiggers, fleas, and no-see-ums Non-greasy, odorless, non-staining, and sweat-proof Controlled release formula provides lasting protection for up to 11 hours Available in 4-ounce and airline friendly 3-ounce bottles