The 6597 is what you reach for when a cotton cap would already be soaked. The honeycomb-weave polyester pulls moisture off your head and moves air through the fabric instead of trapping it — so the cap stays light on a long round of golf, a summer job site, or a Saturday in the stands.
This is a true fitted cap. There's no snap, no strap, no adjuster hardware digging into the back of your head. The stretch band holds the crown in place through a swing, a sprint, or a gust of wind, and it looks clean from every angle because nothing interrupts the back panel.
Two sizes cover most heads. S/M fits 6¾" to 7¼". L/XL fits 7⅛" to 7⅝". If you land in the overlap, go by preference — S/M sits snugger, L/XL wears looser. Not sure of your size? Run a soft tape around your head about an inch above your ears, level all the way around, and measure where a cap would naturally sit.
Sold blank, one cap or a hundred — no minimum, no pack sizes. Shipped from live warehouse stock, so what you see in the color menu is what's actually on the shelf.