A geneticist named Miguel O'Hara gained his spider-like powers from a gene-splicing incident, when the company he was about to quit injected him with a dangerous drug called Rapture. He tried to rid himself of the drug by using the Gene Slicer he helped to invent, but unbeknownst to him a jealous co-worker had set it to repeat the previous experiment of a spider. The last time they had tried this experiment it killed the test subject (the main reason Miguel O'Hara quit), but this time it worked. Instead of becoming a company owned version of Spider-Man he became the opposite, a Spider-Man to fight Alchemax and the other large corporations ruling the world in 2099. He now fights crime as the Spider-Man of 2099.
Many superheroes have a secret identity, and wear a costume or uniform to help conceal that identity. The costume usually has a logo or symbol as part of its design. Sometimes the costume/uniform incorporates special equipment, tools or technology. For example: Iron Man's armor suit, Captain America's vibranium shield, Spider-Man's web-shooters.
There have been controversial costumes over the years. One that sparked enormous controversy well before Halloween 2015 is a "Caitlyn Jenner" corset costume. Despite public outcry claiming that the costume is offensive, popular retailers plan to go full steam ahead with selling the costume; one defending their conviction to sell the costume as a celebration of Jenner.