Lightweight ripstop recycled polyester shell fabric has a DWR (durable water repellent) finish The most thermally-efficient synthetic insulation available. Water-repellent, compressible 60-g PrimaLoft® Gold Insulation has excellent warmth-to-weight and maintains 96% of warmth, even when wet Brick quilting pattern with narrow horizontal quilt lines on side panels stabilizes insulation, and uses durable thread for abrasion-resistance Easy venting, deep center-front zipper has wicking interior storm flap and zipper garage at chin for next-to-skin comfort Left chest pocket has clean-finished zipper garage and doubles as a self stuffsack with a reinforced carabiner clip-in loop Elasticized cuffs and hem seal in warmth