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 • Plastic snap closure • Green under visor • Head circumference: 21 ⅝” - 23 ⅝” (54.9 cm to 60 cm)