Foliage Green Gen Iii Silk Weight Bottom Underwear is made up of 100% polyester jersey knit fabric. Fabric helps wick moisture away from skin. Features PISOFT AB-500, durable anti-odor and anti microbial properties, improves elasticity and tear strength and pill resistant & anti-static. Features: Elastic waistband, access fly. Sand colored bottom. Military E.C.W.C.S. generation III silkweight underwear. ECWCS, short for Extended/Extreme Cold Weather Clothing System. Ideal for sleepwear, campers, hunters, skiing, etc. Army Style. Military Style.