Teesar US GI Trilaminate Boonie Hat Woodland 100% Nylon Waterproof and breathable construction. Durable 3-layer laminate construction Lightweight and comfortable to wear. Adjustable chin strap with cord stopper Ventilation holes on both sides. Scrim web strap attached around hat. Wide reinforced brim Excellent wet weather protection. Ideal for all outdoor pursuits such as hunting, shooting or fishing Hat material: 3-layer-laminate (100% Nylon, breathable Polyester membrane, 100% Polyester)