Single bike bag for urban cyclists who don't need a car to get around! The versatile, messenger-style bike bag comes with roll-top closure and is easily attached to your gear rack using the QMR hook system (for rack rails up to 16 mm) and the lower rail hook. The hooks can be secured directly on the rack with a small lock (e.g. TSA Lock, not included). A variety of pockets makes it easy to organize your load: With 27 liters volume, the spacious bike bag can carry everything you need for the day, whether its for work, a change of clothes or your sports equipment. The large laptop compartment for devices up to 15.6" can be accessed separately by zip. An extra tablet compartment at the front provides even more organizer pockets. Two sturdy side pockets will hold your water bottles or music player. With the roll closure open, even larger purchases can be transported comfortably. An integrated rain cover and a removable shoulder strap non-negotiable. Reflective webbing integrated inconspicuously into the design in the lower third of the bag ensures good visibility in the dark. This product is made with water resistant Eco Finish that's manufactured without the use of fluorocarbons (PFC). The VAUDE Green Shape label stands for environmentally-friendly, functional products made from sustainable and bluesign certified materials.