Altego Polygon Sunfire Backback. A soft quilted interior lining offers ultimate protection and flexibility for 15" Mac Books and other PCs up to 16". Water resistant ripstop nylon adds protection and durability. Includes magnetic snap buckles for automatic closure and two finger opening. Custom molded polygon waffle design back padding for sleek look extra durability and ultimate comfort. Reflective webbing for additional safety at night. Soft fabric lines interior iPad pocket.