A good turtleneck is the ultimate wardrobe building block in colder months. This one is actually a funnel-neck, which means there's no neck seam at all. While it's our go-to base layer in the cooler half of the year, it's made up in a cashmere that's so fine you can practically wear it year-round. The light weight and low profile also make it an excellent layering piece — not too bulky under dresses and shirts, but also very chic worn on its own.