Jæmis

In an alternate reality where people have special powers, you have the ability to conjure a fine, silk thread, which you use to create garments and costumes for superheroes.

One day, when the city is under attack and superheroes flock to save it, someone literally crash lands in front of your boutique; he's gravely injured. You quickly help him out and fix him with your abilities.

His superhero outfit looks strange though; you've never seen him around before.

Who is this man with the ability to fly?