How big is too big to wear clothes from places Like AE, Abercrombie, and Hollister?

If it fits comfortably then there is no problem, the brand has nothing to do with it.

There isn't a weight restriction, as long as you can comfortably fit into the clothes, it's fine! If you like to shop there and it makes you happy, go for it!

if you cannot comfortably fit in the largest size and look flattering, you are too big. if that's not the case then AE, A&F, and Hollister away!

As long as you try it on and it fits then I don't see why you couldn't buy your clothes there.
I think it's nice you're paying attention to your appearance :)

I think you can make any one of those brands stylish and flattering on any body type, its all about sizes and fit.

For instance say you go to buy a button down shirt or something, your usually a large, you try it on and it fits well everywhere else but the chest or something. Well then go for the extra large, and if that fits well in the chest and a little more loose then you would like everywhere else, you can simple altar it to fit you by going somewhere to get it done or asking someone you know who sews.

Its a simple rule that everyone with all body types should follow, its all in how things fit, and most people don't have the same body type, so one generic size won't fit all of that size category, if that makes sense to you.

Even I, being slim, can't just buy a size small and call it a day. I have a larger bust and a bit of a butt, so I even have to altar clothing to fit appropriately.

Hope that helps a bit!

do what you feel is right...or what looks good to you.

If they have your size, you're not too big for those brands.
You know what I'm talking about! How the labels and advertising are, and the whole 'image' thing, etc. So I would just say don't worry about it.For example, I heard Aero doesn't carry past size 36

As a sidenote, when I first read the title I thought you were referring to your age (think high-school labels). Ha!