The fabric or substrate on which you will be embroidering should be chosen wisely because there are a few materials that are not recommended for embroidery. The fabrics that are not suitable for embroidery include silk, flimsy tees, rayon, and other thin fabrics. This is because these delicate materials are prone to wear and tear and get perforated by the needling. In short, pure cotton and linen are suggested for embroidering.