Abstract: A hat case for holding and transporting one or more hats comprises a first body half having a first elongated semi-cylindrical sidewall extending between a top and bottom portion of the first body half and a second body half having a second elongated semi-cylindrical sidewall extending between a top and bottom portion of the second body half. The first and second sidewalls have first and second longitudinal edges. A hinge assembly is positioned along the first longitudinal edges of the first and second sidewalls for joining the first and second body halves together. A locking assembly is positioned along the second longitudinal edges of the first and second sidewalls for locking the first and second body halves together to form a cylindrical case having an elongated housing for holding and transporting the hats. A plurality of adjustable shelves can be provided within the hat case for transporting a plurality of hats having a variety of shapes and/or sizes.