Is Kiziks supportive for people with flat feet? Does it come around ankle or below ankle?

Below the ankle. It is a regular tennis shoe. Easy on easy off. And yes it does have some support for flat feet. It is worth the money ❤️

Can you buy a Kizik shoe in blue color?

Yes. They have multiple colors. Type kizik slip on shoes (men or women) and the various styles and colors come up.

Are these shoes slip resistant enough to wear to work in the food industry?

Yes they are! I’ve worn them in many different situations are they have remained non- slip!

What is the difference from one shoe model to next?

To me it just looked like styles/design. I picked the one that I was drawn to (Athens) and have not been disappointed. I ordered a second pair in the same style in a different color the week after I got my first pair. Watch to be sure the store/seller is Kizik and not a third party if you want to be sure you don’t get a possible counterfeit brand. I ordered my first pair on Amazon and my second pair from Kizik website. Price was the same and I got a new customer discount.