They were the shoes everyone wore in the 1950's. They went with everything....your poodle skirt, your jeans, your shorts, whatever you wore.
I remember in the mid-1960's they came back into style, but they were made of patten leather then. And once again, everyone wore them. I remember in high school, there was not a girl on campus who did not have them.
I see that you can still buy them online. How cool!