Supergirl (Kara Zor-El) is the female cousin of Superman from the destroyed planet Krypton. Since Supergirl is also Kryptonian she shares his superpower abilities of flight, super strength and heat vision. Like Superman she is also vulnerable to the Kryptonite which can weaken and potentially kill them. Supergirl's costume is made up of a blue top with long sleeves, red boots and a short red skirt. Like Superman she also dons a red cape and has the letter “S” printed in the middle of her shirt. Since she is one of the most powerful superheroes Supergirl is a popular character to choose for costume parties.