The hat material is bonded to the outer mesh structure and the lining to absorb sweat and have a dense net-like structure! It's like a running hat, but it's also suitable for summer hiking! Since the brim of the hat is made of hard material, I think you can choose if you do not like the shape of the hat made of soft brim. However, I felt that it was too comfortable to wear when using a soft brim cap, so if you are looking for the comfort of a hat, it would be good to choose a soft shell brim cap for Heo Gye, Crushin It Cap, Vaporlight Cap, and Ultra Trail Cap! However, since the brim is made of hard material, it is not as comfortable as a cap made of soft material.