""You... you can have it if you w-want..." He (Arrie) said rather timidly, moving over to the second closet behind the bedroom door and pulling out a little... clothing set. A black trench with a bunch of straps, a fishnet shirt and a silver necklace with a few charms on the end of it. Hooked on the bottom of the hanger was a pair of black denim bellbottoms with a belt and large silver turtle shell belt buckle."

http://www.rockband.com/wallpaper/3494159/2

It's all Delrin's fault. Shadow's old clothes were burnt by the charmeleon-morph and so the ghost-type had to borrow Arrie's clothes. It doesn't seem to be his style, but it hides his detatched wrists, anyway.