With plenty of room for their laptop, lunch, books and supplies, the Youth Chuckwalla Daypack keeps them organized with a secure-zip front pocket and two water bottle pockets. Plus, it s FlexVent suspension system has articulated shoulder straps and rounded back panel to help keep them comfortable during long days at school or summer camp. Reflective details. 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. Large, zippered main compartment with a 16" laptop sleeve. Large, secure-zip front pocket provides easy access to smaller items. Adjustable sternum strap with a break-away whistle buckle.