Since Levi's was founded in the mid-1800s, it's been an innovative brand — and it's tried to keep things cutting-edge since. In the past year, for example, the brand used customer feedback to improve its product, and recently pioneered the (very successful) wedgie fit. A century-and-a-half in the business, and the company's still making denim history: The brand is working on a pair of its signature slim-fit 511 jeans made entirely out of recycled cotton — the first of its kind, Fast Company reports.While the tags on Levi's Waste