UA Tech™ is our original go-to training gear: loose, light, and it keeps you cool. That means this men''s half zip shirt does everything you need it to do. UA Tech™ fabric is quick-drying, ultra-soft & has a more natural feel. Material wicks sweat & dries really fast. Generous ½ zip front makes for easy layering. New, streamlined fit & shaped hem. Loose: Fuller cut for complete comfort. 100% Polyester.