What is a "watch cap"?

A watch cap is a knitted hat made of wool or synthetic fibers that is designed to fit snugly on the head. It typically has a folded cuff that can be adjusted to cover the ears, and sometimes a pom-pom or tassel on top. The name "watch cap" comes from its historical use by sailors and other military personnel to keep warm during cold weather watches on deck. Today, watch caps are popular among outdoor enthusiasts, athletes, and fashion-conscious individuals who appreciate their practicality and simple, classic style.