High Quality Patch with 2 front structured panels with 4 mesh back panels 2 small ventilation eyelets on front 2 panels, fitted with an inner sweatband Stiff and pre-curved bill, matching color under bill, 6 rows stitching on the bill Adjustable plastic snap closure One size fits most Armycrew Small Insignia NASA Patch 6 Panel Two Tone Mesh Back Trucker Cap. 65% Polyester, 35% Cotton. High Quality Patch with 2 front structured panels with 4 mesh back panels. 2 small ventilation eyelets on front 2 panels, fitted with an inner sweatband. Stiff and pre-curved bill, matching color under bill, 6 rows stitching on the bill. Adjustable plastic snap closure . One size fits most .