Purchased from the official US website. Unisex. Brand new. With tags. Free size: Approximately 51cm to 61cm Adjustable back strap Six-panel construction: Adopts a construction combining six panels of fabric, providing a three-dimensional appearance that better fits various head shapes and offers a comfortable wearing experience. Tough hat shape: The hat's shape is sturdy and can refine facial lines, making any face shape, such as round, square, or long, appear smaller and more refined. Naturally curved brim: The brim has been specially treated to have a natural curve. Not only can it effectively block sunlight, but it also refines facial lines and adds a focal point to the overall coordination. Size is adjustable.