... headwear . we can supply any kinds of caps, such as baseball caps,racing caps,sports caps,golf caps,bucket hat ,trucker hat and visor,etc. 1 ... buckram) .4.Back strap closureAdjustable velcro closure ,snap,metal buckle,fitted design,brass/silver buckle with grommet and so on.5 ... panels style , like bike cap, trucker cap or military cap,baseball caps.common size is 57~58cm for adult cap, also with ...