Big without being bulky--a wider width creates over 2000 cubic inches of storage space.

At a glance the Slingshot doesn't look any wider or longer than the similarly sized Jester Sweeper and Vault day packs from The North Face--and it isn't. The reason that the Slingshot offers more space is that it has over two inches of extra expandable width along the sides giving it a carrying capacity of 2000 cubic inches instead of the standard 1850. The North Face also attached side compression straps to the front trampoline system so you can cinch down that extra width when you don't need it. All that extra load potential and control adds an additional five ounces to this pack compared to the slightly smaller designs but you're not going to notice a difference when you're hauling around eighteen credits worth of reading material. If you're staying late at the office or library the Slingshot also has plenty of reflective elements so you have a better chance of being seen by passing motorists (or your workaholic boss).