Great bag, but the rub ...

Great bag, actually exactly what I've been looking for. Dimensions, layout, material. These fast delivery. But .... I have the bag now for over a year. And they still stained from.
The bag was wiped because of the reviews here well before the first use, etc.
The orange Innebfutter is unfortunately now discolored unsightly brown on the upper edges and also documents that are transported in the bag come out with brown spots again. Unfortunately, this is a major shortcoming. His application documents are not transported prefer in this bag to the mailbox ....

At least one Vorrezensent has already reported similar. Since I have at home something carelessly propped the bag against the wall, I even brown stains on the wallpaper!

I'm torn on this bag. They would be perfect if it were not this Faerbeproblem.