Leely Women Floral Light Blue Mermaid Long Prom Dress with Cape Backless Lace One Shoulder Pageant The Exposed Thong Trend Is Back and Better Than Ever Hailey Bieber Wears Totally Sheer Thong Dress in Nod to Her 2019 Met Gala Look V Neck Open Back Long Lace Prom Dress by La Femme She's in it for the *thong* game. Last night at the @GQ #ManofTheYear awards, @haileybieber stepped out in a sheer @gucci dress with an exposed thongand we couldn't help but be reminded Backless Prom Dresses Open & Low Back Gowns Alamour