Polyester. Olive Drab Netting. Keeps out mosquitoes and other flying insects. Fits over cots, sleeping bags etc. GI Government Issued style. Very simple to setup. Safe for use in many environment's. A mosquito net offers protection against mosquitoes, flies, and other insects, and thus against diseases such as malaria, dengue, west Nile virus and others. Air flows through the mosquito net. Olive Drab GI type mosquito netting 10 yard roll. Dimensions: 10 Yards/Roll x 5' feet (L x W).