Serfas' Speed Bag has such a sleek design you won't even notice it's there. It features a finished interior, reflective trim, key ring storage, and taillight mount (taillight sold separately). This bag attaches easily via Velcro straps so it will stash your gear in style.
Features and Information
Dimensions: 5 x 3.25 x 3.25 inches (Small) / 6 x 4 x 3.5 inches (Medium)