Initially, the sweater was exclusively knitted, but now sometimes sweaters are called knitted products. Remember, the sweater is very warm, and if the clothes are thin, it will no longer be a sweater, but a turtleneck. The word «turtleneck» really is related to the conquerors of sea and river depths-once divers pulled them under a dive costume so as not to freeze in the cold abyss. Now, turtlenecks are already boldly worn by everyone — not only athletes, but also the most ordinary unsportsmanlike inhabitants.