NWOT Lululemon Navigation Stretch Down Jacket. Size Small. Originally $248 Navigate the great outdoors. This insulated jacket is powered by ThermoChannel™ construction to lock-in heat, and made from two-way stretch fabric to keep you comfortably on the move. diamondstretch™ fabric DiamondStretch™ fabric is two-way stretch, windproof, and water-repellent Two-way stretch Windproof Water-repellent thermochannel Windproof, water-repellent fabric and stitch-free ThermoChannel technology offer exceptional wind protection without cold spots. Windproof Water-repellent Insulated features Designed for: On the Move Customize your look: Cinchable hem Storage: Interior zippered chest pocket Layering: Wear it on its own or under your favourite shell Down insulation: 700-fill-power goose down is strategically placed for warmth