Case Logic TK Expandable Messenger Bag - Top-loading - Nylon - Black - Black Serious styling for the casual professional Durable 1680 and 840 nylons provide a premium look and feel Expandable feature doubles bag's width for additional carrying capacity Padded computer compartment holds most 15.4" laptops (internal laptop dimensions 13.75" x 11" x 1.75") Colored internal lining allows you to actually see what's in your bag