Lululemon Pack It Down Jacket Black. Lightweight, warm, and ready to move—this jacket's an essential layer. Made from water-resistant, two-way stretch fabric, it's insulated with 700-fill-power goose down and comes with a stuff-sack for easy, on-the-go packing. 100% of our down is certified to the Responsible Down Standard (RDS) by Control Union (No. 847515) diamondstretch™ fabric DiamondStretch™ fabric is two-way stretch, windproof, and water-repellent Two-way stretch Windproof Water-repellent 700-fill-power goose down 700 fill-power goose down is lightweight and super warm, and brushed fabric is added to areas where the cold sneaks in lightweight insulation heat retention features Designed for: On the Move Thermochannel™: ThermoChannel™ construction evenly distributes down insulation to help eliminate cold spots and reduce bulk Easy-access pockets: Exterior pockets make it easy to stash your stuff Removable hood: This removable hood