The Bike Bag II from Deuter is a handy storage zippered case that has the option to expand with easy hook and loop fasteners to carry your riding essentials such as inner tubes, money and tools when hitting mountain trials, commuting to work or cycling around the neighborhood.
The Bike Bag II is constructed with a tough polyamide ripstop material with DWR (durable water repellent) coating to keep your items dry and protected from the wet and muddy paths as well as reflective detailing for extra visibility during the night and a loop for a safety light.