Never used backpack from Topo Designs. Description: One big main compartment with a single zippered front pocket to stash everything you need for the day. Inside, you'll find a padded sleeve to fit a 15" laptop, plus the base is padded to prevent bumps and bruises to everything else on the inside. The exterior also features a water bottle pocket, which adjusts to size. Features: Heavy-duty YKK zippers with zipper pulls Adjustable water bottle pocket Front slash pocket with internal slip pockets Top grab handle Internal laptop sleeve Padded back panel and base Adjustable gear strap Custom adjustable side ladder lock Internal key clip Security loop on main compartment PackFast bag attachment loops Size: 17.5"h x 11.5"w x 6.5"d, 1351 cu. in. / 22 L Comes from a non-smoking, no-pets home. I'm destashing my collection in preparation for moving overseas, and therefore I do not take returns.