These taupe woven bohemian straw sun hats are a great addition to your summer wardrobe. To use, simply place the hat on your head. They are one - size - fits - all, so they're easy to wear. When you're out in the sun, these hats will protect you from harmful rays. For maintenance, keep them in a cool, dry place. Avoid getting them wet as they're made of 100% paper. Also, be aware that this product contains chemicals like cadmium, lead, and nickel, which can be harmful. If you have any concerns, check www.P65Warnings.ca.gov for more information.