What is a "turtleneck"?

A turtleneck is a style of clothing that typically refers to a sweater or shirt that features a high collar that covers the neck, sometimes extending up to the lower part of the face. The collar of a turtleneck is usually made of a ribbed knit fabric that is stretchy and snug-fitting, which provides warmth and protection from the cold weather. Turtlenecks can be made from a variety of fabrics, including wool, cotton, cashmere, or synthetic materials, and are available in various styles, such as sleeveless, short-sleeved, and long-sleeved. Turtlenecks can be worn alone as a statement piece or layered under blazers, jackets, or coats for a stylish and functional look. They are popular in both men's and women's fashion and can be dressed up or down depending on the occasion.