Comfortable, versatile, and easy-to-wear cardigan sweaters are a wardrobe staple worth investing in. These knitted garments with an open, usually button-up front, add warmth and color to any outfit and are so versatile that you can often pair one cardigan as easily with formal attire as with your favorite pair of casual jeans. In addition, there are literally thousands of styles and materials to choose from including long- and short-sleeve styles, ribbed zip cardigans, belted cardigans, vintage cardigans, and boyfriend cardigans in materials including cotton, polyester, cashmere, linen, and silk cotton for both men and women. With such a huge variety to choose from, it is easy to find a sweater to pair perfectly with your favorite dress, tank, tee, or cami. New and gently used cardigans of all styles, sizes, and colors are available on eBay from reliable sellers so you can complete your wardrobe with sweaters that are perfect for any and every occasion.