The FlexVent™ suspension system, certified by the American Chiropractic Association, has articulated shoulder straps, a rounded back panel, comfortable stitch lines and soft-touch chemise fabric / Standup design / Protective dedicated laptop compartment / Large main compartment for books and binders / Front compartment has internal organization with secure-zip pockets and a padded tablet sleeve / External, fleece-lined pocket for sunglasses, phone or keys / Two durable, external water bottle pockets can easily double as multi-use pockets with quick-draw smartphone access on one side / Two external J-zip pockets, one lined with fleece / Bottom compression / Webbing daisy chain offers lash points / 360-degree reflectivity / Comfortable, padded top grab handle / Sternum strap with a whistle buckle / Removable waist belt