Hey guys, I'm in the market for a Canguro. Do Cangurinos and Canguros dirty easily? Since these two bag styles are usually worn right next to clothing, I'm worried that pant dyes may get onto the back side of the bags and stain them. Anyone have any experiences to share? P.S. I'm hoping to get the Canguro in either Adios Star, Camo Playground Olive or Black, or Inferno.