There is nothing more disappointing than seemingly getting a great deal for designer items and then finding out it is not the real deal.  There are so many ‘too-good-to-be-true’ deals for Custo’s here on E-bay.  A surefire way to tell if it is authentic is to ask where the item was made; I contacted Custo Barcelona and they said that their clothing is only made in Spain, Taiwan and Turkey and most defiantly not Hong Kong.  If you receive a shirt that was made anywhere else it’s a knock off.