a type of baseball cap
a. Top button, 6-panel crown, one sewn eyelet on each panel, embroidered round logo on the middle of front panels, 6 rows of matched color stitching on the pre-curved peak, constructed front panels, open back with velcro closure,
b. Material will be navy blue 108*56 cotton twill, self-fabric sweatband. The size can be controlled just by adjusting velcro closure.