Hey, I have seen some really nice white rashguards around (the nogi comes to mind), but I am reluctant to buy one because I am afraid it will get all dirty and get a permanent brown patch across the back from working the guard like my white gi. Anybody have any experience with white rashguards? Do they stain this way? I noticed that XFGear has a white and black rashguard, but it is black on the front instead of on the back, as would make more sense to me. Are their any rashguards out there that are black in the back, but white otherwize? Is dirt on the back even an issue? Any advice would be appreciated.