I tried it on once after buying it new, but it didn't suit me, so I washed it and stored it. It's a knit cap with a brim from Esquire NEW YORK. Made in Japan. There's a core material in the brim (material unknown). The main body material is 50% wool, 35% acrylic, and 15% nylon. Size unknown (there's no size on the tag, so I'm not sure, but it's stretchy, so I think it's probably free size.) It's a knit cap like a cap, but you can cover your ears by unfolding the folded part as shown in the fifth photo. It will be packed and shipped compactly, slightly compressed. #Euquire #KnitCap