Left Side Slit Opening - 26. Pit to pit - 15. 7 Back Zipper Below Open Back. Please let me know if you have any questions that haven't been answered in this listing. The item "Vtg Oleg Cassini Black Tie 4 Black Silk Bead Evening Dress Romantic Halter Gown" is in sale since Friday, August 7, 2020.This item is in the category "Clothing, Shoes & Accessories\Women\Women's Clothing\Dresses". The seller is "stillwaterscottageboutique" and is located in Navasota, Texas. This item can be shipped worldwide.