A neck cap is a type of clothing accessory that is worn around the neck. It is usually made of a soft material such as cotton or wool and is designed to keep the neck warm. Neck caps can also be used to add a decorative touch to an outfit. They are often seen in winter fashion, but can also be worn in other seasons. Neck caps come in a variety of styles, colors, and fabrics, making them a versatile accessory for any wardrobe.