The Insect Shield sun hat offers built-in, odourless and effective protection against mosquitoes and ticks, including those that can carry lyme disease, malaria, West Nile virus and other dangerous Insect-borne illnesses. The Repellency is bound so tightly to the fabric fibers that it lasts through 70 washings, the expected lifetime of the garment. Insect Shield technology is epa-registered and appropriate for use by the entire family with no restrictions. The Repellency stays in the clothes, not on your skin. You can’t tell it’s there, but the bugs can. Insect Shield is Insect repellent you’ll love to wear. Machine washable. Do not dry clean.