Women's V-Neck Backless Wrap Sweater Dress (Amazon)

The "Two-Way" Wear: This dress is famous for being reversible or versatile. The deep surplice (wrap) design shown hanging forward in your photo is frequently worn facing the back to create a dramatic open back, while the straight horizontal strap keeps the sleeves from slipping off the shoulders. The Cut: It features relaxed, dolman/batwing long sleeves with fitted ribbed cuffs. The Waist: A matching fabric self-tie belt that cinches the waist to balance out the slouchy, cozy fit of the top knit fabric.