Khaki Nylon BDU Belt is made up of nylon material. Belt is fully adjustable. Heat cut end. Unisex. Very stylish and comfortable. BDU - Battle Dress Uniform. This belt is called BDU because it was intended for use during battles, as opposed to garrison belts which are worn at parades and functions. Also known as tan color. Khaki adjustable nylon BDU belt. Width: 1.75" wide.