This is a cap featuring the Swallows Crew logo, made of breathable mesh material. I received it from the Yakult fan club. I haven't used it, only opened the package, but it has been stored at home, so please refrain from purchasing if you are sensitive to this. - Brand: Majestic - Color: Blue/Black - Design: Swallows Crew logo - Size: Free size (57-61cm) - Material: 100% Polyester - Features: Breathable mesh material Thank you for looking.