Plaid patterns are designs made up of crossed horizontal and vertical lines that create a grid-like appearance. These patterns often feature multiple colors, which can vary in thickness and spacing. Commonly associated with fabrics like flannel and wool, plaid is popular in clothing, home decor, and accessories. The origins of plaid can be traced back to Scotland, where it was traditionally used in tartan patterns to represent different clans. Today, plaid is widely recognized and embraced in fashion, often seen in shirts, skirts, and blankets, making it a versatile and timeless choice for various styles.