Crewneck sweaters are not only a winter wardrobe staple on their own; they’re also the ideal layering pieces to slip over a dress for extra warmth. To keep this look chic and not bulky, opt for a thicker knit sweater and a dress with a smooth top and sleeves (like Sadie shown here, Edith, Eva, or Tinsley, with the last three now 40% off). I especially love this look with patterned dresses, since you can emphasize one of the colors in the pattern through the sweater color you opt for. The creative mix-and-match possibilities are truly endless.