When you want warmth that will hold up its end of the cold-weather bargain, the Yorktown Featherless Jacket brings the trusted performance of your outdoor shell to a city-smart jacket. This jacket is made with state-of-the-art 3M™ Thinsulate™ Featherless loose-fill synthetic insulation that matches 700-fill-down in warmth and remains water-resistant in damp, cold conditions. Sealed into Marmot\'s two-layer waterproof and breathable shell, this fully protective package features a variety of pockets, like a hidden flash pocket, a two-way zipper that prevents bunching, and has comfortable additions like inner knit cuffs. Marmot MemBrain® 2 Layer Waterproof/Breathable Fabric 100% Seam Taped 3M™ Thinsulate™ Featherless Insulation Zip-Off Hood Flapped Cargo Pockets with Handwarmer Pockets Chest Pocket with Water Resistant Zips Hidden Flash Pocket Internal Zip Pocket Inner Knit Cuff Adjustable Velcro® Cuff Elastic Drawcord Hem Two-Way Zipper Prevents Bunching Fit - Regular Fit Main materials - Membrain® 2L 70% Nylon, 30% Cotton Twill 4.6 oz/yd Center back length - 31in Weight - 2lbs 12.8oz (1270.1g)