Ceviche as caitij said, for Diesel there is a store at Patio Bullrich.
Zara is basically in all the shopping centres (inc Alto Palermo) but its not really that swanky here so not sure you will find what you after. The girls stuff isnt too bad but I think the guys stuff isnt much to write home about, has some okay casual business shirts and some suit jackets but IMO not much else.
In fact, Liguria which is just across from Diesel in Patio has nice stuff, it doesnt come cheap but if your not worried it could be an option.
Zara is basically in all the shopping centres (inc Alto Palermo) but its not really that swanky here so not sure you will find what you after. The girls stuff isnt too bad but I think the guys stuff isnt much to write home about, has some okay casual business shirts and some suit jackets but IMO not much else.
In fact, Liguria which is just across from Diesel in Patio has nice stuff, it doesnt come cheap but if your not worried it could be an option.