This is a North Face cap with ear flaps. The size is KF, kids' free size. According to the official website, KF is for head sizes 53-56 cm. The brim and front part are made of nylon. It's in excellent condition, having only been worn a few times for events like skiing and skating. Of course, it can also be used for everyday wear. I've cut off the part of the tag where I wrote my name.