This is a black Lululemon Define jacket, a popular style from the brand. It's a full-zip, hip-length jacket made from a stretchy, breathable fabric blend of nylon and lycra. Key features include: Thumbholes and Cuffins: Keeps sleeves in place and hands warm. Back vent: Provides airflow and ventilation. Secure front pockets: For convenient storage. Zipper garage: Protects your chin from the zipper. Locker loop: For easy hanging.