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 status—abrasion-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 Climbing Ultralight Pertex® Diamond Fuse ripstop shell fabric with DWR finish is water- and abrasion-resistant 800-fill RDS®-certified down insulation in a box-wall baffle construction eliminates cold spots Supplemental layer of polyester insulation throughout the shoulders, yoke and lower sleeves to add additional warmth, protection, and loft Dual-fabric mapping for added abrasion and weather resistance on high-wear areas including hood and shoulders Helmet-compatible insulated hood with three-way drawcord adjustment Snag-resistant two-way center front zipper with belay snap that enables secure 1/2 zip for harness access Insulated draft tubes behind zipper eliminates cold spots Two oversized zippered hand pockets Interior secure zippered chest pocket Two Internal drop pockets for easy access Internal waist cinch for a customized fit Stretch-knit cuff for comfort and easy, anti-bulk layering with gloves or a shell Dur