This New Balance Lightweight Women's Zip Up Jacket in size Medium is made of polyester with a fleece fabric type, perfect for activewear. The mid-length jacket features long sleeves and a zip closure, making it ideal for fall and spring seasons. The windbreaker style jacket is designed for running and jogging activities, offering a regular fit for comfort and performance. Easy to care for, this machine washable jacket in a stylish gray color is a versatile addition to any woman's wardrobe.