A Layering Piece: H&M Rib-knit Turtleneck Sweater This H&M Rib-knit Turtleneck Sweater ($18) is an ideal layering piece. When it gets super cold outside, you'll be so happy to have this in your closet. Image Source: www2.hm.com H&M Rib-knit Turtleneck Sweater $18 from www2.hm.com Buy Now