A beanie is a close-fitting hat that covers the head and ears. It is typically made of a soft, stretchy material such as wool, acrylic, or a blend of these fabrics. The fabric is knitted or crocheted in a circular shape and then seamed together at the top to create a dome-like shape. The fabric is also often ribbed, which gives it a textured appearance and helps it stretch to fit the head.The beanie is worn by pulling it down over the top of the head and tucking in the hair. Some beanies have a rolled-up cuff at the bottom edge, which can be worn either folded up or down. Other beanies have a slouchy fit, with excess fabric that drapes down over the ears and neck.Beanies come in a wide range of colors and styles, from solid colors to multi-colored patterns. They can be plain or embellished with details such as pom-poms, embroidery, or appliqué. Beanies are often worn in colder weather to keep the head warm and to protect against the wind and cold. They are a popular choice for outdoor activities such as skiing, snowboarding, and hiking, as well as for everyday wear.