Patented 2-in-1 Detachable Wheel and Handle System. Front zipper pocket for small miscellaneous items. Front organizer pocket for media devices, cell phone, business cards, key holder and pens. Front compartment features a 3-file divider that expands 2" to allow 30% more space. Back compartment padded to protect laptops up to 17" in size. Dual Laptop Protection System uses a high-tech ABS frame to protect laptop from exterior impact and a 10mm high-density foam to help absorb shock and prevent moisture intake. Smart Attachment Strap & Smart Zipper Attachment allows transport on extended handles of other rolling cases and luggage. Bonus. Protective Weatherproof Cover. Comfortable, non-slip, shock absorbing shoulder strap helps alleviate body strain.