Big Bulges and Bare Butts The Marco Marco Core Collection is soft, comfortable, sophisticated everyday underwear that looks as great as it feels. Made from a moisture-wicking, antimicrobial heathered jersey, The Core Thong will keep you feeling dry, supported, and sexy whenever you're wearing them. The Core Thong features black supportive strapping around the crotch. We don’t have many of these in stock, so grab your favorites now.