There's nothing like beaten-up, patched and ripped denim to give you a "just stepped offstage" air and, with the '70s so huge this season, it's definitely something you need in your festival arsenal. But how to make a brand new pair of jeans look authentically scruffy? We sent ASOS Stylist James down to Levi's flagship store to pick up some customization tips from their Tailor Shop pros. Whether it's hand-sewn patches or the perfect knee rips you're after, watch his video to see how to personalize your denim.