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The Sidney Gown is a floor-length A-line dress featuring a plunging V-neckline and intricate lace detailing. It is constructed from a polyester-nylon blend with a full lining for structure and coverage. At $169.00 at Poshmark as of November 7, 2026, it sits at the lower end of its typical luxury boutique price range.
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Lowest price we've seen: $169.00 on Nov 7 at Poshmark. Tracked across 5 stores since Nov 7.
Owners generally praise the gown for its elegant silhouette and the quality of the lace fabric. Most find the fit true to size, though length is a common point of adjustment.