His birthday is coming up and I want to get him a backpack as a gift. He's a big guy (6'2 and 250lb ish).. and he is currently using this old nike backpack (he has a casual dresscode for work). I want to get him something stylish. So any brands/budget are okay with me. I don't think those big camping backpacks will work for him as he likes to carry the pack on one shoulder only. Thanks!