A round elastic cap, often referred to as a bouffant cap or surgical cap, is a type of headwear commonly used in medical, food service, and cleanroom environments. Here are some key features and uses:

Features:

1. Material: Typically made from non-woven fabrics, such as polypropylene, which are breathable and lightweight. Some caps may be made from cloth or other washable materials.
2. Elastic Band: Features an elastic band around the edge to ensure a secure fit around the head.
3. Design: The round shape is designed to cover the entire head and hair, minimizing the risk of contamination.
4. Size: Available in one-size-fits-all or in different sizes to accommodate various head sizes and hair volumes.
5. Color: Commonly available in colors like blue, green, white, and sometimes printed patterns, depending on the industry standards.