And it 's been charmed to repel rain and snow , too , so it 'll never get wet . I thought you could use it . " " Oh , I can definitely use it ! " she smiled , her hand passing over the soft fabric in an appreciative movement that was almost a caress - and Harry forgot his worry over her reaction in a fleeting stab of envy for the bloody cloak . She was caressing it - and he suddenly ( irrationally ) decided he wished he could be that damn cloak .

Question: What is unusual about the cloak ?
Answer: It will magically protect the wearer from foul weather .It will magically make the wearer irrational .It will magically protect the wearer from damned blood .It will magically keep the wearer soft and appreciative .