The product is a 1969 Vietnam Era US Army Men's Sleeping Shirt in size small. Made from Nylon Triacetate Tricot Knit in OD Green, this original piece of militaria from the Vietnam conflict is a collectible item with NSN 8415-890-2100. The shirt is a true representation of the US Army uniforms worn during the Vietnam War, showcasing a piece of history from the United States military.