Namor is a fictional superhero appearing in comic books published by Marvel Comics. He first appeared in 1939 and is often referred to as the Sub-Mariner. Namor is the prince of the underwater city of Atlantis and possesses the ability to fly, superhuman strength, and aquatic powers. He is known for his distinctive green swim trunks and pointed ears. As a character, Namor often finds himself torn between the surface world and his underwater kingdom. He has been a member of various superhero teams, including the Avengers and the Invaders. His complex personality often leads to conflicts with both heroes and villains.