Crumpler have some great bags. I have this one and am extremely happy with it -https://www.crumplerbags.com/flash/flash.aspx#/english/product-details/karachi-outpost-ko03a.html


There is a larger bag with a drag handle that might suit too -https://www.crumplerbags.com/flash/flash.aspx#/english/product-details/cork-and-fork-cf01a.html





Cheers,


A.