Thank you for viewing. Yamato Michi - Model Name: Stretch Mesh Cap - Color: Black - Size: UNISEX S, Head circumference 48.5-54cm - Material: Polyester, Polyurethane - Features: Mesh design - 32g This is a very lightweight and breathable cap. I used it once, but it was too small for me, so I am selling it. Recommended for women with small heads or children. I washed it at home and stored it. Please understand that this is a used item.