wrong

In textiles and garment manufacturing, wrong refers to the reverse or back side of a fabric, the surface that faces inward during wear or assembly. It is the opposite of the right side, which is the finished, visible surface intended for display. When two pieces of cloth are sewn together with right sides facing each other, the wrong sides end up hidden within the seam, protecting the visible exterior from raw edges and internal construction.

The distinction matters because fabrics are often finished differently on each side. A printed or dyed cotton may have vivid color on the right side but duller, unfixed dye on the wrong side. Similarly, pile fabrics like velvet or corduroy have a smooth backing on the wrong side opposite the napped pile. Knit fabrics may show loops or pilling on the back. Understanding which side is wrong prevents mistakes in layout and cutting, especially when a fabric has a directional pattern or nap that runs only one way.

The term extends beyond garments into upholstery, bag making, and leather goods. A leather hide has a flesh side (wrong) and a grain side (right). In quilting, wrong sides are pressed together before binding. When preparing pattern pieces, manufacturers mark grain lines and notches on paper patterns, then flip or mirror pieces as needed to account for which edges touch the wrong side during assembly.

Wrong is strictly a directional descriptor, not a judgment of quality. Poorly made fabric remains poorly made on either side; the wrong side is simply the one not meant to show. The terminology is consistent across English-speaking mills and design houses, though some pattern instructions use phrases like inside or back interchangeably with less precision.