This Betsy and Adam sleek long black formal dress has a chic style with a twist. The elegant floor-length jersey evening gown in black has a flirty side slit that shows flashes of a surprising mint green lining. The sleeveless high-neck bodice features crystal rhinestone encrusted spaghetti straps that stretch over the shoulders and down the backless gown in a racer back style. Wear this lovely long black designer dress to a formal or military ball for a fabulous evening of sophisticated fun.