The head circumference is approximately 51cm. It has some stretch. I think it will be useful in the fall and winter! I have only used it once, but I think there are no noticeable stains. Please note that there are some creases from being stored. Please understand that this is a used item. I will fold it for shipping, so please be aware that it may get creased. I am also selling other clothes, so please take a look. If you purchase multiple items, I can offer a discount, so please feel free to comment. #SayosClothes If you have any questions, please feel free to comment. - Color: Wine Red - Material: 86% wool, 14% nylon - Model number: GHT7820 Color...Red系 (Red-based)