Some of the world’s most exclusive streetwear appears to be available by the pile in Barcelona and other major cities. Seizing on an opportunity a few years ago, an Italian businessman filed for a trademark and began producing T-shirts and hoodies with a bright red-and-white “Supreme” logo. Now he is enmeshed in a legal battle, because his wares are almost identical to clothes that have been on the market for more than 20 years. Supreme, an underground streetwear brand born in 1994 out of New York City’s skateboard scene, has attracted a cultlike following among teens seeking hard-to-get looks by relying on product scarcity. The company has long released styles in limited quantities, forcing fans to rush to its website or stand in long lines at one of its 11 stores. Read more at The Wall Street Journal.