I love the idea of a cat collar made of soy or really anything made of natural materials. My three year old cat has had two of these so far. He seems to be fine with them. I like the bell and the material of the collar since it feels nice. One of the problems that we had with the first one and why we had to replace it was that the collar go weirdly stretched out over time. I don't think the soy material is very long lasting.