Lightweight, warm, and ready to move—this vest'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. 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 Packable: Removable stuff sack for easy packing Down insulation: 700-fill-power goose down is strategically placed for warmth