Military socks 1).Meeting the test from INTERTEK 2).Material: Acrylic, wool, elastic available Specs of the army socks 1). Navy blue ... socks: Composition: 96% wool, 4% elastic 2). Jungle green socks Composition: 60% wool, 35% nylon, 5% elastic 3). APTC ... ). Khaki Composition: 60% acrylic, 25% polyester, 10% spandes, 5% elastic Military wool socks