The Knickerbocker Watch Cap Type II is versatile through multiple seasons, providing lightweightwarmth and comfort. This 100% cotton cap provides warmth while outside and transitions easily to wearing inside. The length is also spot on, providing enough coverage when needed and able to berolled up for indoor use or warmer weather. This cap is a throwback to the military issued World War II versions. It's knittedon the same industrial machines with a five to three gauge knit.