... as baseball caps,racingcaps,sportscaps,golfcaps,bucket hat ,trucker hat and visor,etc. 1.Material/fabric (meet AZO-free requirement)100 ... ,snap,metalbuckle,fitteddesign,brass/silver buckle with grommet and so on.5.LogoFlat and 3D/puff embroidery,logo with fabric outline, rubber ... logo,silkscreen printing logo.etc6. Panel and size3/4/5/6 panels style , like bike cap, trucker cap or military cap,baseball ...