Constructed with Mil Spec 50/50 Nylon/Cotton in Muticam. Loop side velcro patches (1" x 1") on top and both sides for "IR" tag. Loop side velcro patch (2" x 3") on back for "IR" or any other identification tags. Built in goggle retainer straps with snap button. Standard six adjustment straps with double sided velcro. Additional adjustable helmet elastic retainer cord with spring loaded stopper for the improved fit. NVG mount compatible and counter weight compatible. Size Medium to Large HELMET NOT INCLUDED!