|Hi there and welcome!
Although there have been several people posting recently trying to figure out why they have some bald spots on their diapers, this is a very, very, very small number. I do not want to discount their experiences, but I think we are talking about five or six people. One person discovered that a previous owner had used thick bleach on the diapers. One thinks that maybe the bleach in the toilet bowl did it. And it sounds like there are a couple of other who just don't know. BUT! if you think about how many many many diapers are out there in heavy and regular use, this represents a miniscule percent. Personally, I have had cotton OS and Sandys in regular use for over 4 years now with no bald spots anywhere. Not only no bald spots, but they all look pretty fantastic still. The OS especially haven't even had few months off that the L Sandys did, and they just keep going. Yesterday I found a tiny thread that I think might be coming loose on one piece of serging. After four years, I have to say that that's the first real sign of wear I've seen--and I'm still not sure it's not just left over from where the tag used to be. I don't think we're going for a third child, but I would be absolutely confident in these lasting through another child and probably well beyond that. I do line-dry, which I have to believe extends the life of any fabric, but still, they truly are tough diapers.