A hat beanie—often just called a beanie—is a close-fitting, knitted cap that is typically made of wool, cotton, or acrylic. It’s worn on the head for warmth, style, or fashion purposes.

While “hat beanie” is a bit redundant (since a beanie is a type of hat), the term is commonly used online to describe cute, casual, or themed headwear, especially in connection to pop culture, anime, or streetwear.