Just a spandex root suit (might be a different brand--I went through so many of those sports fan sites to find one the right color and without a mark on the butt.) I sewed on the mask, and cat ears. Looped belt w/ golden circles (cardboard that was painted then with loops glued on the backs to go on the belt--eventually I had to add Gorilla tape to these too), long gloves with nails glued in that were painted to match the circles, and boots that I found at Wal-Mart for $7.
The costume didn't win any awards because I haven't competed in any cosplay competitions with it to even know if it would. I did win a rock-paper-scissors tournament wearing it, though. lol