I'm large-busted and have usually struggled to find a comfortable, supportive sports bra that doesn't give me uni-boob.  This one fit the bill! It's comfortable to wear, the straps don't slip, and it keeps all my parts in place during moderate- and high-intensity activity. There's no underwire and the cups aren't molded, but it also does a reasonable job of lifting and separating so that my chest doesn't look deformed while I wear it. :)