Guernseys are a type of knitted sweater originally from the Channel Islands, particularly Guernsey. They are traditionally made from wool and are known for their durability and warmth. Guernseys often feature intricate patterns and designs, which were historically used to identify fishermen from different villages. These sweaters are typically characterized by a close-fitting style and a high neck, providing protection against cold and wet weather. The fabric is usually tightly woven, making it water-resistant. Today, Guernseys are popular not only for their practicality but also as fashionable garments in various settings.