These beanies are super easy to use. Just stretch them over your head, and they'll fit snugly. They're great for casual outings, cold - weather walks, or even for sports. When it comes to care, you can hand - wash them in cold water. Use a mild detergent and gently squeeze out the water. Don't wring them as it might damage the shape. Let them air - dry flat. Remember, due to the California Proposition 65 Warning, keep these beanies away from children and pregnant women. Also, avoid prolonged skin contact with the chemicals in the product.