These are polyester slacks. The size is 34x30, which should fit a lot of people. I bought them about a year ago at a used clothing store. I've only worn them once since I bought them. The color is a navy that's closer to black. The fabric is wrinkle-resistant and feels very good, with a slight thickness that creates a nice drape. They have a glossy appearance and a sense of luxury, so they could also be worn formally.