If you're not comfortable using permethrin treated clothing, there are some natural options to prevent tick bites. The number one most effective method is physical coverage of your skin. This means long sleeves, pants, socks, shoes and even a hat. The upside of all this coverage is that you're protected from other bug bites, poison ivy, and more when out in nature. Of course, the downside can be having to wear so much clothing in the summer heat. Natural, breathable fabrics like linen are your best bet, and Eddie Bauer's Cresta technical fabric is lightweight and comfortable summer wear. We've also listed a couple of natural tick repellent sprays above that are worth giving a try. No matter what tick repellent method you use, always do a quick physical check for ticks at the end of the day. Generally, a tick must be attached for at least 24 hours in order to transmit Lyme disease. So you do have a short window of time where you're likely not in danger, but quick removal of any ticks is imperative.