Free shipping and returns on Sarah Seven 'Sullivan' Back Cutout Short Sleeve Silk Crepe Gown at Nordstrom.com. Clean, elegant lines define a short-sleeve gown fashioned from lush silk crepe with a high neckline that belies the spine-baring back. Fitted to accentuate a slender waist, the long skirt flares to a full circle and is slit up the front to allow a flash of lovely legs.