100% Cotton U.S. SUBMARINE FORCE ??FAST ATTACK?? – Military Grade 100% Cotton classic ball cap with structured crown. Custom made by the legendary Hawkins Military Merchants USA using 100% Cotton Super Twill to exacting military specifications. They are tough as nails and built to last a lifetime; nothing but the best for the Armed Forces of America. 6 Panel construction, medium profile. The crown (front two panels) is structured with buckram, heated and then shaped and reinforced. The back four panels are unstructured, providing the perfect combination of strength and comfort Fully Adjustable, one size fits most with a velcro tab on the back. Fits adult sized heads from small (6-3/4 or 54 cm) to XL (7-3/4 or 62 cm). Velcro zenith is set at 7-1/4 (58 cm) 6 Fully embroidered eyelets on each of the six panels for maximum ventilation ensuring your head stays perfectly ventilated and cool Every hat Hawkins Military Merchants USA sells is lovingly wrapped in plastic and then shipped in a sturdy box to ensure its pristine delivery. We are a veteran owned and operated company, serving vets since 1865. Hawkins Military Merchants USA is a registered Trademark.