I Series Gold Coast 43185 Notebook Case has patented 2-in-1 Detachable Wheel and Handle System. Front zipper pocket provides for small miscellaneous items. Two front organizers pockets for media devices, cell phone, business cards, key chain holder and pens. Back compartment padded to protect laptops up to most 17" in size. Dual Laptop Protection System uses a high-tech ABS honeycomb frame to protect laptop from exterior impact and 10 mm high-density foam to help absorb shock and moisture. Smart Attachment Strap & Smart Zipper Attachment allows transport on extended handles of other rolling cases and luggage.