XTERIOR - Flat shoulder straps & removable, adjustable poly shoulder strap - Full zip closure - Trolley pass-through with zipper, to create pocket when not in use and extra zip pocket on top - 1 exterior slip pocket, 1 exterior zip pocket INTERIOR - Removable interior zip pouch - Padded laptop sleeve pocket with Velcro strap closure (12.5"W x 9"H) - Large zip pocket - Two small slip pockets & pen slips - Key-ring leash with dog clip to attach keys for quick access