I've been wearing a
Crocs flip flop for years now and they've stopped producing the style.
I've had maybe 10 pairs of them because like almost any footwear, eventually the sole support gives out and they are not as good as new. I don't like to wear broken down footwear as I think support from the sole up is important.
So now I'm on the hunt for a decent Croc style flip that suits my foot.
In the winter months I'll wear athletic shoes in the evenings when it is cooler. I've had good luck with New Balance and Puma, and some Nike styles. I've also worn Teva sandals, but I like the freedom of the flip flop styles.