G.I. USMC Desert MARPAT Lightweight Exposure Goretex Parka - Sz. Medium-Regular GORE-TEX Paclite fabric, Water-proof and moisture vapor permeable, 100% nylon shell Designed for wind and rain protection in cold weather and mountain conditions Parka complies with Propper International Product number F740187929 NSN: 8415-01-555-1434