An ultra warm and compressible synthetic insulation that has a soft feel  providing warmth without bulk the ergo Hoody is filled with a new Prime Soft®  insulation .Made with a nylon ripstop fabric and featuring a comfortable soft  lined collar, cycle this jacket into the rotation for ever-faithful layering warmth. You can stuff the coat into its own zippered inside pocket for fast and light packing. A wind flap is tucked behind the front zipper to suppress drafts.