Eileen Fisher. Everlane. Madewell. G-Star Raw. If a sustainability-minded brand makes jeans, chances are it’s working with Saitex. The only B Corp-certified apparel manufacturer in Asia, the Vietnam-based factory produces an average of 18,000 pairs of jeans every day. But while denim production is a notoriously polluting process, Saitex has blazed a different, eco-friendlier path….