When the job heats up, you know you can count on Dickies tech smart temp long sleeve tee tee. This performance cooling tee is made from a soft jersey fabric, Perfect for wearing alone or under Dickies outerwear when the temperature calls for layering. Made with temp-iq technology, It traps cool air inside the yarn and keeps it next to your skin, effectively cooling you down while wicking away sweat. Big & Tall options available.