A true classic, must have surplus item. These hats are made of 100% Polyester with the soft fleece feel. Like its predecessor, the U.S. G.I. wool cap, this hat is lightweight warm and comfortable, but there is a difference, this cap is quick drying and non-irritating due to the tight knit micro fiber construction. These hats can be worn with the edge down or folded in the upward position. Unused Condition. One size fits most. NSN: 8415-01-NSH-0441. Black. Genuine U.S. Military Surplus. MADE IN USA.