[UV Protection Rate 100%, Shading Rate 99.99% or more, UPF50+, Heat Shielding 47%] This product is the result of measurement based on strict inspection standards in Japan. (Compliant with JIS L 1925: UV Shielding Rate Test / JIS L 1055: Light Blocking Test / JIS L 1951) A UV protection hat that can be easily protected from the sun just by wearing it, just like a parasol. It has high light shading and UV protection functions, and high heat shielding performance that cuts nearly half of the heat, making it ideal for UV rays and heat protection when going out. [Free arrangement of shape and size adjustment] The wire is included in the brim, so you can keep your favorite silhouette. You can also fine-tune the size with Velcro on the back of your head. You can wear it in your favorite size, such as when tying your hair or when you want to wear it without feeling constricted. [With chin strap] Safe even on windy days or by bicycle. It is removable, so you can use it differently depending on the scene. 【Cool to the touch】Made of cool to the touch material for a cool and comfortable feel. You can go out comfortably on hot days. It is recommended not only as a protection against ultraviolet rays, but also as a countermeasure against summer heat. *There are individual differences in how you feel cold. The experience varies depending on the outside temperature and wearing environment.　*The mesh part is made of breathable material, so it does not have 100% UV protection. [Care and precautions] This product can be cleaned by hand washing. Please avoid using a washing machine as it may cause shrinkage. Due to the nature of hemp, "nep", "color loss", and "streaks" may occur on the surface of the fabric during the manufacturing process. These are the textures unique to natural materials and are not defective. Please be aware of this before purchasing. (Size): FREE (head circumference): approx. 54-60cm (height): approx. 9cm (brim): approx. 10.5cm *Using adjustment tape *Measurement size is approximate. Please note that there may be some errors. (Fabric) Outer material: 30% cotton, 30% rayon, 25% polyester, 15% hemp, lining: 92% polyester, 8% polyurethane