Under Armour Mens Tech 2.0 Half Zip Top UA Tech is Under Armour's original go-to training gear: loose, light, and it keeps you cool. It's that same great fabric, but this shirt has also been updated with a new, more streamlined fit and a shaped hem. It's everything you need. Loose: Fuller cut for complete comfort. UA Tech fabric is quick-drying, ultra-soft & has a more natural feel. Material wicks sweat & dries really fast. Anti-odour technology prevents the growth of odour-causing microbes. Generous half zip front makes for easy layering. New, streamlined fit & shaped hem. 100% Polyester.