This is a Lululemon Fluff Off Pullover Jacket in size 4 for women. It is a gray ski jacket made of nylon with goose down insulation. The slim fit jacket features a herringbone pattern, a hood, thumbholes, and breathable fabric. It is designed for winter, fall, and spring activities like running, hiking, and cross-training. The jacket is part of the Lululemon Define product line, perfect for travel, casual wear, and activewear.