This is a Phoenix knit cap. It has only been worn a few times, so I think you can use it with confidence. Size: Free Material Composition: 〈Outer〉63% Acrylic, 31% Wool, 5% Polyester, 1% Rayon 〈Lining〉Sweat-wicking and quick-drying fleece (95% Polyester, 5% Polyurethane) Description: Product Introduction: ◆ A warm patchwork brim cap with sweat-wicking and quick-drying fleece lining. Brand Description: Phoenix's pride. It's the know-how accumulated over many years, the world's top-level latest functional materials, high quality and high performance that can only be achieved because it's from Japan, and the love for all outdoor activities. We gather all of this and continue to create new values that have never existed before.