1125 × 750
Source:https://www.lulus.com/products/chic-impulse-black-backless-midi-dress/1078142.html
1830 × 1200
Source:https://www.astrthelabel.com/products/high-neck-open-back-maxi-adr101799
875 × 700
Source:https://www.bloomingdales.com/shop/product/reiss-livvy-open-back-midi-dress?ID\u003d4216662
900 × 600
Source:https://shopretailery.com/products/kimono-open-back-midi-dress
655 × 513
Source:https://www.asos.com/us/asos-design/asos-open-back-midi-dress/prd/6517743
1000 × 675
Source:https://naughtygrl.com/products/ab-5
1535 × 1024
Source:https://shopworthcollective.com/products/floral-midi-dress-in-pink
626 × 469
Source:https://dreamitwearit.com/backless-midi-dress-black/
1363 × 1000
Source:https://7southshop.com/products/stateside-heavy-poplin-open-back-midi-dress-mauve
1500 × 1000
Source:https://us.boohoo.com/mixed-floral-print-open-back-midi-dress/FZZ06525.html