The Ultimate Uniform is treasure that can be obtained in Sly Cooper: Age of Thieves in the episode In the Air Tonight. It is worth 244 coins and the time needed to reach the safehouse is forty seconds.
"This one-of-a-kind uniform was personally hand-crafted by Otto van Cooper himself in his mechanic days in the hopes of being a professional pilot. It hasn't been worn in ages, so the quality is still just as good as it's always been, although the smell of car oil still persists to this day."
It is located behind a laser security gate that needs its control panel short circuited. Carmelita is the only character that is able to obtain this treasure.