Flared jeans are a type of denim trousers that are fitted from the waist to the knees, then widen from the knees to the hem, creating a flared or bell-bottom silhouette. They were first popularized in the 1960s and 1970s, and have since made several comebacks. Flared jeans can be worn with a variety of tops, from fitted tees to oversized sweaters, and can be dressed up or down depending on the occasion.