One peice?

There are absolutely no modest one pieces left in the world- I went shopping with my sister for 3 hours looking for swimsuits! We were both about to pull our hair out. Finally I just bought some swim shorts and a tank to put over my other swimsuit... I get that its a church mission trip and their going to want a one piece and obviously people will buy modest clothes- so why don't they make them? We seriously went to at least 9 different stores.