Under Armour 1328495 UA Tech 2.0 1/2 Zip Long Sleeve Shirt Academy/Academy 4XL Lightweight pullover that's built for athletic performance with sleek styling and a more tailored cut to help it easily blend into your off-hours attire. Made of polyester. Tech 2.0 is one of Under Armour's lightest fabrics, and has a more natural, soft feel. Moisture-wicking properties work to keep fabric dry. Antimicrobial odor control helps keep fabric fresh. Standing mock neck. Half zip closure at front. Long, narrow raglan sleeves. Under Armour logos on left chest and top of back. Loose fit.