When I was traveling in Thailand, I bought a cap. It has a shade cloth behind. I never seen such a cap in Japanease hats shops. A few years had past, I find out this forming caps on kids in Japanease kindergarden. Since then, I guess caps with brim shall be in fashion. Not yet. I go out on a cap with brim. Many peoples have funny eyes to my cap, but a few peaple say, nice. It may be has not been accepted as cool.