If you are tired of running out of chalk the Ultra-Mega is for you. This group-sized bagholds over 700 cubic inches (12 liters) of chalk; enough for your next road trip to Hueco Tanks or Bishop. This behemoth is ready for anything you can throw at it.The slot opening helps prevent spills and still allows easy access to your precious powder. The top edges clip together to form a burly handle, it has a large pocket for wallets and keys and smaller ones for cleaning brushes. Built out of tough 300D nylon and ripstop, the Ultra-Mega will withstand years of abuse.