Boblbee Peoples Delite Executive Hardshell Backpack - Panther Black Matt Hardsided 19" high 11" wide ABS plastic monocoque shell for impact protection An aero dynamic dome (top) to help airflow and to give extra water protection Lycra mesh laminate harness to reduce heat build-up against back Generation 4 Aero harness with air mesh for good ventilation Limited Lifetime Warranty