“It's not Zoo-topia, it's Wilde & Son's Suit-topia!”
Wilde & Son's Suit-topia was a location that was cut from Zootopia. It was a tailoring shop owned by Mr. Wilde.
In earlier versions of the film, Mr. Wilde and his young son, Nick Wilde, opened a tailoring shop that catered to every mammal. It is unknown what happened to the shop afterwards, but a piece of concept art shows an adult Nick revisiting the shop only to find it dilapidated and deserted, so it can be assumed that it went out of business.