Adding a fabric facing to the button band of a hand-knit sweater makes for a clean, stabilized edge that both looks and wears better than the knitted band on its own. While hand-knit fabric is extremely stretchy and floppy, a woven fabric — like a cotton lawn or a quilting cotton — has no stretch and holds its shape extremely well, making it perfectly suited for the part of a garment that is constantly being tugged and manipulated in day-to-day wear. It’s also a great place to add some personality to your sweater — I’ve used a beautiful Liberty of London print from EWE Fibers to add a bit of joy to the inside of my cardigan.