High quality 850-fill-power goose down is extremely warm lightweight and compressible QShield technology adds water-resistance preserving the warmth even when wetAirShield Elite windproof ripstop nylon offers total protection from windchill without giving up the necessary breathability that keeps you dry and comfortableStretchy fleece bib provides additional insulation for your core zippered chest pocket lets you keep essentials close at handMountain Hardwear Nilas bib pants feature a watertight two-way front zipper for ventilation and easy on-and-off adjustable suspenders allow customized fit