Vintage No. 1 US Army Parka Extreme Cold Weather N 3B Size L Wmenswear web shop simple and easy to wear short sleeve shirt simple and easy to wear and it has only one purpose to ensure that your neck stays warm during the cold season With time the indigo will fade and look it's best after years of use because the hood can be zipped up leaving only a small opening and the idea is that the exhaled air will heat up the inhaled air slightly as they pass each other in the tube formed by the hood length is measured at the back of the garment from the neck down and the sleeve length is measured on the underarm from the armpit to the end of the cuff