I was interested in this harness because my cat was always able to wiggle her way out of the typical harnesses found at the usual pet stores. This one seems to be very secure, though not to the point of being uncomfortable for the cat. She did seem a little confused for the first couple of times due to the harness having much more surface area but she got used to it quickly. I have no regrets with this purchase, it was worth the peace of mind alone.