Windproof and water-resistant, the Nano Puff® Jacket is made with warm, incredibly lightweight, highly compressible 60-g PrimaLoft® Gold Insulation; ideal as outerwear, or as an insulating layer in colder climates. 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 horizontal quilt lines on side panels stabilizes insulation, and uses durable thread for abrasion resistance Center-front zipper has wicking interior storm flap and zipper garage at chin for next-to-skin comfort Two zippered handwarmer pockets have clean-finished zipper garages; zippered internal chest pocket doubles as a stuffsack with a reinforced carabiner clip-in loop Drawcord-adjustable drop-tail hem seals in warmth Shell and lining: 1.4-oz 22-denier 100% recycled polyester, with a DWR (durable water repellent) finish. Insulation: 60-g PrimaLoft® Gold Insulation 100% polyester 84213SMDB