Browning ball caps come in two primary styles:  Flexible fitted caps which are made of stretchable materials and come sized.  These caps are made to look like a custom fitted ball cap and fit the head snuggly.  They come in two sizes:   S/M fits 6 7/8 - 7 1/4   L/XL fits 7 1/4 - 7 5/8.  Adjustable fitted caps have a strap at the back of the cap that can be adjusted to increase or decrease the size through the use of a closure device such as hook and loop or an adjustable buckle.