If you have this, you have everything - because the eco-friendly, PVC-free Mineo Transformer Backpack 20 can be clipped onto the bike rack as a bike bag. It also serves as a comfortable business backpack and features a trolley attachment function for your travels. The adjustable Plug and Ride mounting rail allows the bike backpack to be easily attached and removed from the bike rack. The rail conveniently disappears into the quick storage compartment when the bike backpack is in use. The spacious main compartment includes a sleeve for a 15.6" laptop, as well as holders for pens and water bottles. An additional front pocket and a security pocket on the back keep your phone, documents, and papers easily accessible in the bike backpack. A super practical key holder elastic on the padded shoulder strap makes locking the door a pleasure, and the dirt-repellent material is resistant to the everyday urban jungle. As a member with Leader Status at 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.