Two pairs of jeans can look almost identical on a hanger and look completely different after a few months of wear. One may keep its shape, sit comfortably at the waist, fade attractively, and hold together at high-stress areas. The other may twist after washing, stretch out at the knees, develop loose seams, or lose the fit that made it appealing in the first place. The difference is rarely one feature. High-quality jeans come from a series of connected decisions involving de