Like many others, I was a Shape Up customer until the line was disbanded due to lawyers. My wife pointed out that Ryn made a very similar shoe, and I am now a regular with this Korean company. This particular shoe lasted longer than my Shape Ups. The only flaw was the bottom of the shoe would peel away. Being thrifty and refusing to return the shoes, I glued them down, only to have the bottom peel away again. I decided to live with it because my arthritic big toe could not do without the shoe.