5 panel cap

Construction - It consists of five triangular panels stitched together (compared to the traditional 6-panel cap).
No Button - True 5-panel hats typically lack the central button on top, giving it a very clean, flat appearance.
Crown - Lower profile (less height/dome) than a classic baseball cap.
Brim - flat (though can be curved) and often shorter than a dad hat.
Closure - features a fabric strap with a metal buckle, plastic clip, or leather strap in the back.