STM Trestle, Laptop Backpack for 13-Inch Laptop - Navy (stm-111-088M-35) Main compartment reveals padded laptop cell (will hold most 11-14 inch) and integrated tablet sleeve. Paperwork pocket for a folder or two and capacity for books, a spare sweater etc. Multiple external pockets: Top soft fleece lined pocket for sunglasses or phone. Front organization pocket hold pens, keys, wallet, or other smaller items. And two side pockets - one elastic, one zip for water bottle, keys, umbrella Comfortable padded shoulder straps with removable sternum strap to stabilize the load 3D foam mesh back panel with air-flow channel for a comfortable carry on the hotter days and integrated luggage pass through secures the bag to the handle of your wheeled luggage Large, #10 self-repairing YKK zippers with brushed aluminum zipper pulls for long-term durability