HELIKON-TEX Soldier 95 Boonie Hat Camogrom Head circumference (recommended): S (55-56cm), M (57-58cm), L (59-60cm), XL (61-62cm) Adjustable chin strap. Reinforced brim Comfortable and lightweight. Tough and hard wearing Easily folded into a pocket size Material: Polycotton Ripstop (60% Cotton, 40% Polyester)