The classic 28-liter Jester was redesigned with a comfortable back panel and shoulder strapsReflective bike-light loop, water bottle tabs and shoulder-strap webbing create 360 degrees of reflectivity; Dimensions: 19.25" x 12.5" x 9" The FlexVent suspension system features a flexible yoke built from custom injection-molded shoulder straps, a padded mesh back panel and a breathable lumbar panel.Two extended mesh water bottle pockets; Laptop Sleeve: 11.5" x 13.5" Padded laptop sleeve in the main compartment protects your goods from bumps and fallsUpdated front elastic bungee system for external storage Large main compartment for books and bindersComfortable padded top handle Front compartment with internal organization has an extra padded tablet sleeve, a pendolier and additional secure-zip pocketsSternum strap with whistle buckle