Take it back to 1978 when Muhammad Ali and Superman teamed up to defeat an alien invasion of earth with …

Along with a new line of tees and windbreaker jackets, the Under Armour x Muhammad Ali Collection has added this …

Train daily like “The Greatest” with this moisture-wicking Muhammad Ali workout tee from Under Armour. One of the latest tops …

Represent the “Greatest of All Time” with the Muhammad Ali G.O.A.T. T-Shirt from Under Armour. One of several new signature …

Revisiting another one of Muhammad Ali’s classic quotes, the Rumble tee from Under Armour’s Ali signature clothing line has arrived in …

Bringing a basic co-branded look to the new Under Armour x Muhammad Ali clothing line are these three colors in the …

Giving you another way to represent Muhammad Ali’s greatness inside the ring are these new tees and waffle crew top …

Represent boxing’s G.O.A.T. while revisiting Ali’s greatness inside the ring with these Muhammad Ali “How Great I Am” T-Shirts from …

Train like a champ while paying tribute to Muhammad Ali inside the gym with this short sleeve Heatgear t-shirt from …

As new styles from the Under Armour x Muhammad Ali Collection continue to release in tribute to the boxing world’s G.O.A.T., …