This is a knitted hat made with a crochet hook. The material is cotton. The yarn is a bit thick, giving it a slightly rough texture. It's white, but with a slightly yellowish tint. Please refer to the photos for the size. It covers my ears, and I'm an average-sized adult woman. Since it's handmade, it has some stretch. My mother, who has over 60 years of knitting experience, made this as a hobby. Please refer to her self-introduction if you'd like. This is a handmade item by an amateur, so we appreciate your understanding. We hope you like it. It will be shipped folded. #handmade #crochet #knithat #hat #handknitted