Crafted of a luxe silk and linen blend, Zimmermann's maxi dress spotlights a sweetheart bralette-style neck and side cut-outs that wrap into an open back. This sleeveless piece is complete with self-tie straps and a beautiful floral print. Only at Saks. If you are worry about authenticity don’t buy . If you need more pictures or have any questions please let me know . The dress is AU 2 which is equal to 6-8USA. I am size 6 medium and it fits perfectly.