The Class 3 Long Sleeve T-Shirt is ANSI Type R with 50+ UPF sun protection, built-in insect repellent and black bottom front. The shirt is made of 100% Polyester birdseye mesh, durable lightweight performance wicking fabric, enhanced with UPF/UV 50+ protection, built-in insect repellent, 2" segmented reflective material, 1 upper left chest pocket and the black bottom helps hide dirt.