It wasn’t until I was in my mid-20s that I discovered the seductive power of the perfect pair of jeans. Mine were low-slung, dangerously shredded and, at first, nearly impossible to squeeze into. But, as I wore them, they softened, becoming a protective second skin. This season, designers are rethinking the timeless material with a DIY approach: Reworked vintage styles, OTT distressing, pins, patchwork and slogans are taking personalization to new heights. Flip the page for more on the new denim revolution.