The best fabrics for sculpting leggings usually combine soft compression, stable stretch, good opacity, smooth handfeel, and reliable recovery. Nylon-spandex and recycled-blend performance knits can work well when they hold shape without becoming too rigid. Brands should avoid choosing fabric only by touch. A fabric must also perform during bending, stretching, sitting, and repeated wear. Opacity and recovery are especially important because they directly affect customer trust.