Thirty former workers of designer Alexander Wang have brought a $450 million class-action lawsuit…accusing Wang of operating a sweatshop in New York City’s Chinatown…Wenyu Lu, a former employee among those suing Wang…claim[s] that he was hospitalized after working 25 hours without a break before becoming unconcious. According to his lawyer, Ming Hai, Lu was fired on Feb. 16 after complaining about the working conditions…Hai calls the garment factories in Chinatown, of which there are about 20, a “new kind of slavery.”…A rep for Wang [said]…“The company takes its obligations to comply with the law very seriously, including the relevant wage and hour regulations, the payment of overtime to eligible employees and having a safe working environment for all of our employees. We will vehemently defend any allegations to the contrary.”