Using this beanie is super easy. Just put it on your head and adjust it to fit comfortably. It's great for keeping your head warm in cold weather. When it comes to maintenance, you can hand - wash it in cold water with a mild detergent. Gently squeeze out the water and let it air dry. Don't use bleach or put it in the dryer. Also, keep in mind the California Proposition 65 warning. Avoid long - term contact with the product if you're worried about the chemicals. If you have any questions, refer to the warning website for more details.