Fits most notebooks up to 39.12 cm (15.4-in). Front bungee system to stash bicycle helmet, newspaper, or jacket. Mesh water bottle pockets on the sides. Sound port for headphones. Lightweight design. Cool-mesh, padded back panel and shoulder straps. Neoprene carrying handle. Zip-down workstation area with pen and pencil holders, key hook, and pockets for MP3 players, cell phones, calculators, or notebook cables. (0.78 in) padding on case bottom for notebook protection. Notebook sleeve design that enables multifunctional use of the case for notebook and books -- or just books.