Ghillie suits can be constructed in several different ways. Some services make them of rough burlap (of the hessian kind) flaps attached to a net punch. U.S. Army ghillie suits are often built using a pilot's flight suit, or some other one-piece coverall as the base. A full cover of rough webbing or fish-netting in a durable fabric is attached in irregular patterns designed to hide lines and blend in. Then, this is weathered using mud, by dragging it under or running over it with a car. When on location, as much of the local foliage as possible without restricting movement is applied to blend in. It is customary for the ghillie suit to be made by the sniper, rather than bought.