Packable Protection for Mountain Pursuits. This down jacket has a high warmth-to-weight ratio and impressive packability, making it ideal for adventures at altitude. It is made with recycled fabrics and insulated with ethically sourced recycled down. The 700-Fill RDS Recycled Hydrophobic Down traps body heat and dries quickly. The Pertex Quantum Ripstop outer material is highly durable, water-resistant, and wind-resistant, protecting you from light flurries and chilly gusts. Zoned baffling uses a combination of micro and nano baffles to increase warmth where it matters without adding bulk.