SPANXsmooth OnForm Tank Dress Spanx Plum Berry L SPANX SPANXshape Suit Your Fancy Plunge Low Back Mid Thigh Bodysuit Shopbop Serving low back with a little help from @Spanx This one has been my go to shapewear for backless dresses! YOU NEED Comment SHAPE for the link. Shop it here Serving low back with a little help from @Spanx This one has been my go to shapewear for backless dresses! YOU NEED Comment SHAPE for the link. Shop it here The best backless shapewear Ive found! Shapewear & dress in my AmzSF! #backlessdresshack #backlessdress