Vintage Ecko Unltd. Black Baggy Jeans. Ecko Unltd. is a Urban fashion company founded by Marc Ecko in 1993. It is headquartered in New York City. The company's products gained public attention in the late 1990s; they were originally associated with hip-hop and skate culture and moved into mainstream urban culture in the early 2000s. It is most often associated with hip-hop. Its brand features a rhino as its logo. Rap artist MC Serch of 3rd Bass assisted with marketing in the early years of the brand.