This hat is structured with a classic fit, flat brim, and full buckram. The adjustable snap closure makes it a comfortable, one-size-fits-most hat. 80% acrylic, 20% wool Green Camo is 60% cotton, 40% polyester Structured, 6-panel, high-profile 6 embroidered eyelets Plastic snap closure Green undervisor Head circumference: 21⅝″–23⅝″ (54.9 cm–60 cm) Blank product sourced from Vietnam or Bangladesh This product is made especially for you as soon as you place an order, which is why it takes us a bit longer to deliver it to you. Making products on demand instead of in bulk helps reduce overproduction, so thank you for making thoughtful purchasing decisions!