Everything you need and nothing you don't, all bundled in an incredibly comfortable ride. The FlexVent™ suspension system boosts compression-molded shoulder straps and a padded air-mesh back panel with a spine channel for maximum support and ventilation. Floating padded laptop sleeve in main compartment protects laptop from bumps and falls. Secondary compartment has internal organization with a secure zippered pocket, Velcro™ pocket and pen pockets. Reflective bike-light loop, water bottle tabs and shoulder-strap webbing create 360 degrees of reflectivity. Two mesh water bottle pockets. Comfortable, padded top haul handle. Sternum strap with whistle bucket.