North End Mens Mid-Length Insulated Jacket (Navy L) 100% Nylon Zipper closure INSULATION: 80 gsm in sleeves 100% nylon 228T taslan, 3.5 oz./yd2/120 gsm LINING:100% polyester anti-pill spun fleece, 8.1 oz./yd2/273 gsm UTK 2 temperature range: 36F to 1F / 2C to -18C warmth attributes: inside storm placket thermal retention shockcord at hem