UA Tech™ is our original go-to training gear: the Under Armour Men's Tech Polo Shirt is loose, lightweight and keeps you cool. Basically, they have everything you need. Textured fabric, soft, lightweight and breathable. The material absorbs sweat and dries very quickly. 3 button fly. Self-woven collar. Loose fit: Loose fit for a comfortable fit. Tall Sizes: All Tall sizes are 2"/5cm longer than regular size. Sleeve length is proportional to the silhouette.