He can fly without a suit or cape, and his suit is already protective. The cape is also part of Superman's story. In many versions of the character, the cape is a gift from his biological parents, Jor-El and Lara, and serves as a reminder of his Kryptonian heritage.
On his birth planet, Krypton, gravity was much stronger than it is on Earth, so Kryptonians developed a physique that could resist its pull. When he's on Earth, Superman's physique can defy the planet's weaker pull easily, and that ability, enhanced by solar energy, allows him to fly.
Superman is able to fly without wings by using his Kryptonian physiology to manipulate Earth's electromagnetic field, creating an opposing force that allows him to defy gravity and levitate. He is able to fly using his own power and he doesn't need any kind of jet propulsion or technology.
Superman experienced a weird power fluctuation that rendered him in the form of pure energy. Needing a containment suit, he found that he was considerably faster, intangible, and able to interact with computers in this energy form. He also lost his vulnerability to Kryptonite.
Everyone knows that Superman has powers and abilities far beyond those of mortal men, but when you ask people if they could choose just one of Superman's powers, most people answer with: Flight. However, when Superman first appeared in 1938, he actually didn't fly – he leaped, only an eighth of a mile at a time.
Kryptonians don't possess any powers on their home planet Krypton (although sometimes it was stated that they were capable of flying but lost this power due to overrelliance on their advanced technology), due to its red sun and natural higher gravity.
The Kryptonians in the Bottle City of Kandor provided a costume that reacted to Earth's yellow sun the way that Superman's cells do, making it indestructible. Essentially, this confirmed that Kryptonian fabrics like Superman's costume are why the Man of Steel's outfit remains intact through so much.
Summary. Superman's least appreciated power, his X-ray vision, can easily neutralize the effects of Kryptonite, rendering it harmless to him. In Adventure Comics #266, Superman used his X-ray vision to free his Superdog, Krypto, from a Kryptonite cage without any adverse effects.
So, no, Superman can't breathe in space, because the term is meaningless in the conditions being described, but he can survive for a long, long time without taking a breath. Couple that with durability, super speed, and flight, and Clark Kent rarely has to worry about running out of breath.
Superman has died and been resurrected in various storylines, causing debates about his immortality and aging compared to humans. Despite being virtually immortal due to his solar-powered cells, Superman's fate is tied to the lifespan of Earth's sun, making his mortality inevitable.
He later continues “flying” (horizontally) toward the setting sun, indicating that… for the briefest of moments, the Hulk really could fly! Hulk would retain his ability to make superhuman leaps, although later stories would emphasize that he was only jumping and not defying gravity.
The Flashes are capable of almost any velocity, but with that speed comes the ultimate risk of becoming one with the dimension that gives them their power. Superman has no such connection to the Speed Force, and as such never risks being drawn into it like his fleet-footed allies.
Superman has no defense against magic or other supernatural attacks and is fully vulnerable to these attacks. Why is Superman not the strongest superhero in DC? Because he was during the Silver Age, and the stories were weak. An all powerful superhero has no stakes.
Batman sees Superman as nothing more than a potential alien threat to be eliminated. As set up by Batman v Superman, the showdown between the two heroes is symbolically positioned as Batman's last chance to regain the humanity slipping away from him.
Captain Atom has proven in past battles that he is stronger than Superman and has better fighting skills. He can also weaponize red sun radiation, which can weaken Superman like Kryptonite and magic. His sometimes uncontrolled nature has earned him a reputation as one of the most dangerous DC heroes.
The suit is built for the intention of fighting Superman. It has mechanisms which enhance Batman's strength and durability so that he can go toe-to-toe with the Man of Steel.
The Man of Steel explains that the youngster will never have a private life without a mask. And when asked why doesn't wear one, Superman says he takes "different steps to secure my identity" and that if he had one, it would give people the "slightest reason not to trust" him as they will fear him instead.
The complete outfit worn by legendary actor Reeves in several of the iconic films, including the 1978 original, was up for auction for more than a quarter of a million dollars. The costume included a tunic, cape, belt, a pair of trunks, leggings and boots for $350,112, according to a Twitter post.
Kryptonians were once born naturally, but this idea was soon discarded in the wake of advancements in genetic engineering, and they ultimately decided to control the population by growing fetuses underwater in orbs within Genesis Chambers (monitored by aquabots), which provided them with all they needed to survive ...
Animators for the 1940s Superman cartoon found that they were wasting a lot of time animating Superman jumping to and from locations. They filed a request with DC to change his power from simply leaping to full-on flight. DC agreed and Superman has been flying around ever since.
In the first stories about Superman's origins, all Kryptonians possess on their homeworld the same powers Superman has on Earth. In later depictions, their abilities are attributed to the differences between Earth's gravity and that of Krypton and the different radiation of the stars they orbit.
