I have three pair. They're from Oh My Gauze and they are no longer in production! My three pair are becoming threadbare (that will happen with clothing made from gauze), and they are now very difficult to track down online.
The design is very simple, they're a basic wide-legged pant which is gathered in pleats at the bottom and hemmed into a wide band. I would say a person with basic machine sewing skills could probably make them.
I need to learn how to sew! STAT!