J.Crew Arabelle long dress in silk chiffon

Description from J.Crew website: Crinkled silk chiffon. It features a sweetheart neckline with Grecian-inspired draping, pretty ruching along the sides and a delicately pleated waist. For extra support, we added boning at the sides and elastic along the bodice, so you can dance all night without worrying about wardrobe malfunctions. Never worn with tags/no alternations. Size 12