STM Bags DP-1107-1 Large Loop Backpack, Fits up to 17 Inch Screens, Black-Charcoal Adjustable laptop section for most laptop screens up to 17 Inch - front section with loads of pockets Back section for books and folders - headphone portal Padded pockets to protect delicate possessions- ergonomic - comfortable back system and shoulder straps Removable key clip - removable waist strap- contoured rubber handle 35 Litre capacity