Abstract: The present invention relates to a hat having a foldable brim formed thereon, and, more specifically, relates to a hat having a foldable brim formed thereon, wherein the hat is formed such that the brim can be folded upwards, a comfortable feel during wear is maintained as there is little feeling of compression tightening around the head of the wearer even when the brim is folded upwards, and hat productivity is improved by ensuring that sewing is convenient.

Abstract: The present invention relates to a functional cap, and more particularly, to a functional cap in which: functionality and a sense of beauty may be increased by bending the brim in multiple steps so as to be lifted upwards; sunlight may be prevented from directly entering an air opening formed on a first brim because a second brim may be bent in multiple steps while forming a double brim; and the wear feel is excellent because the air opening is formed to provide a full field of vision.