These shoes are called Kangoo Jumps.
They provide the high-tech bounce for dancing, running, or other exercise.
This video is from their 2014 International Festival in Florida that I had the opportunity to watch.
Amazing what the participants were able to do and the fun they had.
I’d like a pair and to be able to kick up my heels like that too. 😉
(Source Video: Andy Blumenthal)