Based on the A-4 knit cap issued to US Air Force mechanics, it is knitted with high-quality cotton combed yarn. Since it is 100% cotton, it does not irritate the fibers, and is easy to care for as it can be easily washed.
The short fibers are removed during the reeling process, resulting in a glossy and soft yarn. Even after washing, it keeps the surface fluffy and maintains a supple texture.
The top of the head, the folded edge, and the knitting of various parts have been changed for a highly complete finish. You can wear it deeper by folding it once and shallower by folding it in two.
