This snapback speaks for itself.  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)