Product information: Processing Technology: Satin Fabric name: Polyester Color: yellow, purple, khaki, black, white, pink, gray, brown, Klein blue, dark green, light green, beige, light yellow, green, Rose Red, Strawberry bear red, orange, blue gray Style of Crown: Flat Top Main fabric composition: Polyester (polyester fiber) Size: Adjustable Function: neck protection, breathable, warm Suitable season: Winter Style: Versatile, elegant, minimalist, casual, stylish OL, simple, European and American, affordable luxury style, advanced Head circumference: One size fits all (56-58cm) Hat brim: about 8cm