STM Notebook carrying STM-111-171P-04 backpack, Dark navy, Polyester, Screnn size 15", Carrying Strap Grab handle, padded shoulder straps, Full-size slim front pocket with organiser, Lower front storage pocket for easy access to cables and power cords, Overflow stash pocket for easy access to quick grab items, Constructed of durable water resistant fabric. The STM Trilogy Backpack is perfectly for a Notebook/Laptop with up to 15-inch size. It has a trio storage compartments (two main ones.