The North Face Summit Series Nima Jacket - Women's Vaporous Grey/Monument Grey Medium Designed for alpine climbing, rock climbing and mountaineering Summit Series&reg; collection is harness and pack-compatible Fabric: Body: 15D 100% nylon ripstop with DWR Insulation: 60 g PrimaLoft&reg; Silver Insulation Eco Weight: 390 g (14 oz)