If you have this, you have it all – the eco-friendly, PVC-free Mineo Transformer Backpack 20 can be clipped onto your bike's luggage rack. It serves as a comfortable business backpack and also features a trolley attachment function for your travel times. The adjustable Plug and Ride mounting rail allows for quick attachment and removal of the bike backpack from the luggage rack. The rail conveniently disappears into the quick storage compartment when the bike backpack is worn. The spacious main compartment includes a pocket for a 15.6" laptop, as well as holders for pens and a water bottle. An additional front pocket and a security pocket on the back keep your phone, documents, and papers easily accessible. A super practical key holder elastic band on the padded shoulder strap makes locking your door a pleasure, and the dirt-repellent material is resistant to the everyday urban jungle. As a member with Leader Status in the independent organization Fair Wear, VAUDE is committed to fair working conditions and fair wages. The VAUDE Green Shape label stands for an environmentally friendly, functional product made from sustainable materials.