The North Face Aconcagua Vest (Medium, Vanadis Grey) Warm down vest features a baffled, ripstop nylon exterior with DWR finish bluesign&reg; approved fabric Fabric: Shell: 40D x 50D 53% recycled polyester, 47% polyester ripstop Insulation: Body and Sleeve: 550 fill goose down; Shoulder and Pocket: 100 g Heatseeker&trade; Weight: 350 g (12.35 oz)