Under Armour Tech Twist Women's 1/2 Zip Top UA Tech is Under Armour's original go-to training gear: loose, light, and it keeps you cool. It's everything you need. UA Tech fabric is quick-drying, ultra-soft and has a more natural feel for ultimate next-to-skin comfort. Enriched with moisture-management technology, this half-zip top wicks sweat away from the surface of the skin and transfers this to the outer material, for quick evaporation, keeping you damp-free and comfortable even when the tempo steps up. The half-zip front features adjustable airflow and coverage; zip down to quickly release excess heat and zip up to seal in the warmth on a bitter day.