A versatile, mid-weight insulator, the Signal Field Shirt is equally capable serving as an outerlayer in cooler conditions, or as a midlayer when the mercury falls. Signal's wind and weather resistant melton fabric is made from fine merino wool, reinforced with nylon, and will provide a lifetime of heritage performance. 80% wool/ 20% Nylon Fabric Weight: 12.3 oz yd2/ 406 gm2