Come and Check Our Branding Solutions.Quality material: these breathable mesh ivy caps are made of quality polyester fiber, breathable, skin-friendly, soft, making you feel more comfortable. Size information: there is an elastic band on the back of the hat, so one size fits most people, and the most suitable head circumference is 58 - 60 cm (7 1/4 - 7 1/2). Pls check inventory and detailed info before placing your orders.