You can knit armor stitch using two different-sized knitting needles. The size of one of your needles should match the yarn you are using, while the other needle to use should be thinner. The concept of using different-sized needles is to achieve very loose stitches that would mimic the interlocked metal rings of chainmail. The fabric created with a knitted armor stitch resembles the metal fabric used for medieval body armor. Here is how to knit the armor stitch using different-sized needles: Gather your materials: Silver metallic yarns or string Knitting needles (sizes 4.5mm and 7 mm) Silver spray paint Cast on 21 stitches or the number of stitches you want on the larger needle. After casting on the big needle, you can start working the stitches with the smaller needle. Start with a purl stitch. You make an armor stitch from one purl and one knit stitch. Make sure to hold your needles properly, as they may tend to slip off since they have different sizes. With armor stitch, you start a row of stitches with a purl and end with a purl. Repeat the process of making purl and knit stitches until you reach the number of rows you want. Spray with silver paint to make it look more realistic. You will see that you have made a fabric that resembles the chainmail armor of ancient times.