Why did Icarus and Daedalus need wings

to escape from the tower prison

Daedalus used wax, feathers, and twine to build some wings for himself and his son Icarus. Daedalus would warn Icarus to fly at a middle height so water would dampen the wings and the sung won't melt the wings. Daedalus is a genius inventor who thought of escaping by air with making wings.