The red bag was used for small things: When I came in MP3 players, headphones and charging cable, my girlfriend has gorged their panties
The green bag, I took even socks - perfect!
The blue bag I for my boxers used - perfect!
After his attire (or whatever) has stowed away in the bag, you can zuzurren this and the air still rauspressen something - which saves space in your backpack.
Another great side effect is that the backpack is tidier and the things to be found faster!
And should the backpack sometimes be wet, the basic clothes or ever (for me) the electric stuff protected - here you have yet to say that this case has not yet occurred, fortunately for me ... but: rather have and not need, than need and not have ...: P
