Size: 54-57 Color: Black A hat-style bicycle helmet that combines safety and elegance. Its Japanese safety standards (SG certification) and elegant design add color to the daily lives of adults. [Stylish yet safe. Bowl-shaped design and 3-layer structure for Japanese heads] The helmet's shape is bowl-shaped to fit the round shape common among Japanese people, ensuring a secure fit. It also features a 3-layer structure: ① Hard PC, ② High-performance EPS, and ③ Three inner pads, to firmly protect the head from impact. [Comfortable for long periods. Lightweight at approximately 320g] While ensuring safety, the helmet is lightweight, weighing approximately 320g. It is comfortable for women to wear for extended periods, and can be worn even when getting off the bike for a quick errand. [The hat part has a wide brim for an elegant silhouette & a back ribbon for a cute and sophisticated look!] The hat part has a wide brim for an elegant silhouette that blends in with adult women's fashion. A back ribbon is attached to the back of the hat for a cute design. Soft wire is inserted into the hat's brim, allowing the wearer to raise the brim while riding to maintain a wide field of vision.