C1 Case for iPhone 5 The Colorant C1 case is made of hard polycarbonate, but the entire outside is coated with a soft and rubbery material that's very grippy and feels fantastic in the hand. But not only because of the coating, the whole refined design of the case just feels right in your hand. Simple, smooth, slim and very effective. So, you get the best of both worlds...a comfortable and slim case that also protects your precious iPhone 5. We love it!!