The Novara Reflective Medium Wedge Bicycle Under Seat Bag is a lightweight and durable nylon bag designed for cyclists. With a sleek black color and sleek design, this medium-sized saddle bag is compatible with all bikes and is easy to attach under the seat. The bag features a reflective element for visibility while riding, making it a practical and stylish accessory for any cyclist. With a weight of only 8.5 ounces, this under seat bag is perfect for storing small items while out on a bike ride.