Ergonomic design. The main compartment has a thick padded pocket to securely store laptops up to 15.6 ". The large rear section includes tie-down straps to secure clothing and other items. Separate padded compartment for files Legal size and fits all tablet sizes, on the other side of the divider. Front zippered compartment for office supplies, cell phone and accessories. Hidden ball bearing wheels and an extendable handle. Top handle that will hide automatically into its slot when released. All materials and features have been designed to withstand frequent travel. 16.7 x 14.5 x 9 in. 31 liters. Black.