DIMENSIONS: 18.5 x 11.5 x 6.5 in MATERIAL: Ripstop Polyester Small stain shown in photo # 3, not a major stain, just a small one. Ergonomically contoured, padded shoulder straps with breathable mesh fabric and web loop for superior carrying comfort and convenience Padded, Airflow back panel with mesh fabric for superior back ventilation and support Back panel add-a-bag feature allows bag to slide over extended handle of wheeled luggage Padded laptop compartment designed to fit most 16" laptops Main compartment features garment compartment with mesh zippered divider Organizer compartment with multiple divider pockets for mobile phone, passport and other items Top fleece lined quick access pocket Hidden side zip pocket for more valuable items Side cinch cord water bottle pocket Durable top and side handles Side compression straps to tighten down the load Interior slip pocket and zippered mesh pocket for added packing organization