SHORT SLEEVE (2X) REFLECTIVE|T-SHIRT, HI-VIZ YELLOW W/ POCKET|PIP's Hi-Vis Yellow T-shirt is ideal for construction, municipalities, shipyards, and anywhere hi-visibility apparel is necessary. It is made of 100% Polyester Birdseye Mesh, a durable lightweight performance wicking material. It has a 2" silver reflective tape design and 1 chest pocket.