I live for a turtleneck. Does that make me sound dowdy? Perhaps. But to me, they're the best layering piece in my closet when it's cold out. Toss one on under a crewneck silhouette for a fun little pop, ground a patterned blazer with one for a sophisticated look, or wear one on its own tucked into jeans, trousers, or a high-waisted skirt. In neutral shades like white, black, grey, and tan, your options are endless.