Denim is perhaps the defining fabric of our day. But what to do with all those old jeans? In the old days you would just sew them into a skirt or maybe make a kitschy bag. Now, doubtless, there are more exciting things to be done with recycled denim. That’s the thought behind the “Recycle Denim Maniacs” competition, put on by the city in partnership with Nudie Jeans. Professional designers and fashion students can submit sketches that fit the theme “Rockabilly Blues”; the winner will be announced at Fashion Focus Chicago and awarded a “spa weekend” in South Beach. Sketches must be submitted by July 27th–see the link for further details.