A friend of mine brought one along on an overnighter we took this weekend. It looked like the metal mesh it's made of might be a tad light to withstand bears - but don't take that as an informed opinion: first, I've not camped in bear country and don't know how sturdy such containers need to be, and second, I don't know if the one he brought is the heaviest gauge they make.

It definitely looked like it would withstand a raccoon or other camp robber, though.