Quiksilver has your back in mind!  All day/night shred sessions sometimes require a lot of stuff (and Monster!!!!) and Quiksilver definately understands the necessity of needing a back pack durable enough to live up to what you put it through and a back pack that will hold all your stuff!!  This bad boy has everything from vertical skate carry, lovely super cushy padded shoulder straps to a padded lap top compartment.