Вот, нашла даже для чего их делают: Feathering minimizes hipshttps://www.google.com/search?q=jeans&espv=210&es_sm=93&source=lnms&tbm=isch&sa=X&ei=cIwVU_nrDtCgogTwnoKgCg&ved=0CAkQ_AUoAQ&biw=1920&bih=979#q=jeans+with+wrinkles&tbm=isch&facrc=_&imgdii=_&imgrc=WfPaxzJmJaiV-M%253A%3BI_pYYcFIx2N8sM%3Bhttp%253A%252F%252Fwww.graspingforobjectivity.com%252Fwp-content%252Fuploads%252F2012%252F02%252FSubject-D-Feathering-2_thumb.jpg%3Bhttp%253A%252F%252Fwww.graspingforobjectivity.com%252F2012%252F02%252Fjeans.html%3B454%3B432