No hassle insect protection, all you need to do is get dressed! Insect repellent clothing is treated with a permanent insect repellent so that mosquitoes, midges, ticks and even leeches are discouraged from landing. Insects and ticks that do land will be put off biting, and if they do stay will receive a lethal dose of repellent. We still recommend using a good repellent on any exposed skin to get the best bite and sting protection.