8291BK High-Visibility Long Sleeve T-Shirt is ANSI-compliant and Type R, Class 2 certified to wear in low-visibility areas. Breathable, polyester knit (4.1 oz.) is moisture-wicking and provides protection against harmful UV rays thanks to 30-plus UPF. The 2" heat transfer reflective helps keep you safe in low-light conditions. Black accents on the front and sleeves keep high-wear areas looking clean. One outside pocket stores small items within reach.