4000 × 2667
Source:https://www.meshki.us/products/sabine-backless-maxi-dress-black
1000 × 667
Source:https://clubllondon.us/products/black-backless-knot-detail-fishtail-maxi-dress
3000 × 2000
Source:https://us.ohpolly.com/products/kiah-long-sleeve-backless-split-maxi-black
350 × 350
Source:https://www.amazon.com/Backless-Ruched-Spaghetti-Evening-Dresses/dp/B0B3N161TV
855 × 570
Source:https://www.etsy.com/listing/258998643/backless-black-maxi-dress-evening
350 × 350
Source:https://www.amazon.com/ABYOVRT-Backless-Bodycon-Sleeveless-Cocktail/dp/B0C5CLFPYR
1000 × 667
Source:https://clubllondon.us/products/backless-knot-detail-fishtail-maxi-dress-red
1000 × 600
Source:https://www.modaglamboutique.com/products/backless-mermaid-satin-evening-gown-black
1000 × 1000
Source:https://www.amazon.com/JUMISEE-Backless-Elegant-Sleeveless-Spaghetti/dp/B0B42L5164
1125 × 750
Source:https://www.lulus.com/products/glamorous-in-glitter-black-long-sleeve-backless-maxi-dress/1007262.html