The Adams Professional Is a solid 6-panel , mid crown structured cap with buckram. 100 percent cotton 108x56 vat dyed twill, self-fabric back strap with antique buckle and tuck-in grommet. Four rows of stitching on self-fabric, Cool-crown sweatband, dyed to match taping, pre-curved visor, matching color sewn eyelets and Adam's Cool-crown mesh lining. This hat is treated with Dupont Teflon making it water and stain repellant.