Ok. Quick story about Under Armour and their cleats/football gear. My brother is close friends with Barrett Ruud. I have met him on multiple occasions, and he is a great guy. Anyway, after his second year in the league he was turning a lot of heads and was offered an endorsement contract by Under Armour. He said that the cleats that they presented to him and wanted him to wear were so heavy, uncomfortable, and faulty that he would rather have paid for his own cleats for the rest of his career than take the million dollar endorsement that they offered him.
Short version: One of the best linebackers in the NFL has told my brother and I personally that Under Armour is vastly inferior to any of the other major athletic shoe companies.