The "Useful Knit Turtleneck" is made of 100% cotton combed yarn that is soft to the touch and tightly knitted, and is available in three colors. With just the right thickness and a firm texture, it is an indispensable item for winter, not only can you wear it by itself, but also as an inner layer for shirts and one-piece. In addition to basic off-white and black, we also recommend the beautiful blue, which is surprisingly easy to match as an accent color.