I will ship it via Yu-Pack to prevent it from losing its shape, so please don't worry. ^ ^ I've only worn it twice, so it's in very good condition! There are no stains or marks, so please don't worry. ^ ^ Washing it will cause it to lose its shape, so I've wiped it with a stain removal sheet. The actual size is about 61-63cm, but it's Flexfit, so it stretches and can be adjusted. I think most people can wear it unless they have a very large head size. It's a type that doesn't stand out even if someone with a large face wears it! The material is made of a mixed material of acrylic and wool, providing a soft and comfortable fit. It also contains elastane, which improves the fit. Material: 83% Acrylic, 15% Wool, 2% Elastane Color: White系 (White-based) Dirt, tears, smell, etc.: None #Deep