Radians Class 3 Moisture Wicking Long Sleeve Shirt Radians ST21 Class 3 Long Sleeve Safety T-Shirt is made with Max-Dri™ which is an arid Birdseye Moisture Wicking Mesh allowing for maximum breathability, without compromising durability. The stripes are adhered by heat transfer rather than sewn on, making the safety T-shirt wear much more like a regular T-shirt. The wicking properties improve hot weather comfort making it feel much cooler. The front pocket does not include reflective material to allow for corporate imprints.