Our ultra-warm down parka for shiver-free belays on ice and alpine routes, après-trek warmth at Everest Base Camp, and anytime you take a break in bone-chilling temps. High-lofting RDS® certified 800-fill down in a 3-D box baffle construction stops any and all cold spots while durable materials throughout ensures its outer layer statusabrasion-resistant Pertex® on the outside, sure, but also down to the tough diamond-shaped yarns. And on days when the bivy and steep pitches are on the itinerary, pack it way with perfect convenience.Uses: Alpine Climbing, Rock ClimbingUltralight Pertex® Diamond Fuse ripstop shell fabric with DWR finish is water- and abrasion-resistant800-fill RDS®-certified down insulation in a box-wall baffle construction eliminates cold spotsSupplemental layer of polyester insulation throughout the shoulders, yoke and lower sleeves to add additional warmth, protection, and loftDual-fabric mapping for added abrasion and weather resistance on high-wear areas including