If you're a fan of relaxed outfits, why not take this combo of a black and white horizontal striped turtleneck and black jeans for a walk? And if you want to easily amp up your look with one piece, introduce a pair of black leather casual boots to the mix. You bet this combination is great to keep you snug and stylish throughout the winter season. This combination shows how to stay fashionable as you get into your 30s.