1. One Size Fits Most - Circumference: 54cm-58cm/21.5"-22.8"; Adjustable; Perfectly fits most teens and adults. 2. One size fits most people. Warm and stretchy hats are suitable for most people. 3. Suitable for various occasions. The hat can be easily paired with boots, jeans, jackets, tank tops, scarves, leggings, gloves or winter coats. Great for skiing, snowboarding, ice skating, sledding, snowshoeing, camping, hiking or any outdoor winter sports and daily use. 4. Gifts for friends and family. Christmas gifts, winter warm hats, this casual style fluffy hat is ideal for all kinds of people. Popular in winter, beanies are great gifts for wives, husbands, boyfriends, girlfriends, fathers and mothers. 5. Washing instructions: Hand wash with cold water and mild detergent, air dry or spot clean. Do not bleach, do not iron.