 Hunters of game have long made use of camouflage in the form of materials such as animal skins , mud , foliage , and green or brown clothing to enable them to approach wary game animals . Field sports such as driven grouse shooting conceal hunters in hides ( also called blinds or shooting butts ) . Modern hunting clothing makes use of fabrics that provide a disruptive camouflage pattern ; for example , in 1986 the hunter Bill Jordan created cryptic clothing for hunters , printed with images of specific kinds of vegetation such as grass and branches . 
