Flip flops in the office - yay or nay?

It's summer and flip-flops are back. I find them irritating - they distract my focus from work. I can't help but wonder if it's just my outdated thinking. Or perhaps my hearing which is exceptionally good. Does anyone else feel this way about flip-flops? I've come to dread them. I'm in technology - a relaxed environment. I found flip flops that make hardly any noise at all. (Sole brand) On the rare occasion I opt to wear them to work, I'm careful to walk in such a way even that tiny bit of noise isn't made. To that point, heavy walkers that "barrel through" are much louder than the rest, regardless of the shoe type. Maybe if people could just be aware it would help.