Cotton slub is a good material; it is the most popular among slub fabrics. Cotton slub is a favorite material for making shirts because it is airy, light, and does not cling to the body. Natural fabrics make slub fabrics, and cotton is the most accessible and common natural fabric. It is an ideal material to use for making slub yarn or fabric. Slub cotton may not feel as smooth as the high-end brushed cotton but is famous for its heathered look and irregular texture. The slub jersey knit fabric is one of the popular materials used to make casual garments. It is made using a single yarn knit with interlocking loops facing one direction. A slub jersey knit fabric clothing has vertical rows on the front side and flat loops on the wrong side. When you closely inspect slub knit clothing, bumps and ridges create a textured effect on the fabric. With this uneven texture, your clothing does not need ironing. Most slub knit fabrics are stretchy and can lose shape over time, so they are not commonly used for upholstery. Slub fabric is not commonly used for formal clothing, although some slub silk fabrics are made for formal wear.