FULL SUN PROTECTION COVERAGE - Wide brim (3.5in // 8.9cm), neck shade and UPF 50+ treatment protect against harmful UV rays STAY DRY AND COMFORTABLE - Microfiber sweatband lining traps sweat to keep it out of eyes BREATHABLE - Two mesh side vents for maximum airflow LIGHTWEIGHT FIT - Comfortable polyester ensures a bulk-free fit ROLL-UP NECK SHADE - Neck shade rolls up and snaps into place when not in use ADJUSTABLE FIT - Back-of-hat cinch cord and chin drawstring adjust for custom fit AVOID DANGEROUS HANG-UPS - Chin drawstring cord breaks away immediately if caught on equipment or machinery FITS A VARIETY OF HEAD SIZES - S/M (21-22.6in // 56.5-57.5cm) and L/XL (24.2-24.6in // 61.5-62.5cm)