GloWear 8931 Hi-Vis Reflective Stretch-Fit Hat is made with bright fluorescent lime fabric and reflective brim to boost visibility on busy job sites and in low-light conditions. Subtle gray visor interior reduces glare. Lightweight cotton-polyester hat is not stiff or bulky. Breathable mesh side and back panels allow maximum airflow. Soft and flexible, stretch-fit elastic band creates a snug but comfortable fit. Hat is ideal for those working in road construction, transportation, baggage handling, municipalities or around moving vehicles. It's also great for outdoor recreational activities where you need to be seen, such as running or biking. Handwash only to extend the vibrancy of fluorescent color. Hat is compatible with Skullerz 8945 and 8945F(x) Bump Cap Inserts (not included) for protection against bumps, scrapes and bruises. Inner width is from 22 to 23". Height is 6.7". Brim width is 7".