Tackle the daily commute in comfort and support with the durable yet roomy surge backpack. Fabric - solid colours | 210d recycled nylon ripstop with non-pfc durable water-repellent (non-pfc dwr) finish fabric - heather version | 300d heathered recycled polyester with non-pfc durable water-repellent (non-pfc dwr) finish sizes | os avg weight | 1260 g volume | 31 litres dimensions | 30, 5 cm x 17, 8 cm x 50, 8 cm laptop sleeve | 38, 1 cm x 29, 2 cm with three large, easy-to-access, zipped pockets on the front, the surge offers plenty of organisation the flex ventTM suspension system, certified by the american chiropractic association, has articulated shoulder straps, a rounded back panel, comfortable stitch lines and soft-touch chemise fabric stand-up design protective dedicated laptop compartment large main compartment for books and binders front compartment has internal organisation 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 women-specific version available. Colour: black