What is the difference between b-free and born free bottles?

[cheekychopsmum]

I don't know which one is the best to buy. They both claim to do the same thing, but they look slightly different. Argg help!

I think (but may be wrong) that the B-free bottles are the old style ones and the Born Free bottles are newer style ones. They are both supposed to be BPA free and that is how they got their name.