The uniforms in X-Men: First Class are closer to the original yellow and blue/black comic book uniforms. They are flight suits designed by Beast to withstand extreme g-forces. Beast, Xavier, Raven, and Erik all had similar costumes. However, Havok and Banshee's were designed specifically to work in tandem with their powers. * Havok's costume had a chest piece that allowed him to channel his powers. * Banshee's uniform had wings that he could use with his powers to fly. * Beast's sleeves and shorts are cut off at a certain point, allowing more manueverability in battle.