Home Prefer Five Star Vintage Trucker Hat Adjustable Twill Cotton Baseball Cap Imported One Size Fits Most Measures 21.65"-23.62" circumference. Bigger than the average head size for women. High Performance Cotton twill fabric,comfortable,lightweight,and great looking Offering protection from the glare of the sun Rear adjustable thicken high-grade metal with washed leather belt High Temperature sizing technology and special wear process workmanship preserves the Natural Arch of the Hat,not easy to fade or fracture Colorful,soft to the touch,the absorbent and breathable fabric is perfect for warmer weather. Please allow little color difference due to different camera or light environment