The Lululemon Full Zip Define Jacket in Women’s Size 4 is a versatile and stylish activewear piece suitable for various occasions. Made from a polyester blend with thumbholes, this black jacket features a full zip closure and long sleeves, making it perfect for activities like gym training, yoga, and running. The stretch fabric ensures a comfortable and flexible fit, while the solid black color adds a touch of classic style. With its athleisure theme and quality construction from the Lululemon brand, this jacket is a must-have for any active woman's wardrobe.