"Looks like a ballet flat. Engineered like a running shoe." These uber comfortable shoes were a Kickstarter and are not yet available for the public. They will be $250 new.The last photo shows just how thick the insoles are, and they compress and form like memory foam. I didn't want to put the time in to make them my perfect fit so I'm passing them on. They are VERY cushy and comfy.Black pen mark on the insole otherwise in excellent condition.Size 5