Flawless Plus Size Black Sequin One-Shoulder Formal Dress

Own the night in this black one-shoulder sequin formal dress designed to celebrate your curves and command attention. The Flawless evening gown in Black delivers sleek glamour with a body-skimming silhouette that feels polished, confident, and unforgettable.

An asymmetrical neckline and single long sleeve create striking, modern lines, while shimmering black paillettes catch the light with every step. The fitted bodice and slim skirt enhance your shape, and a stretch knit lining ensures comfort and ease of movement. A right leg slit adds a touch of drama, balanced by a soft sweep train for an elegant finish.

This plus size black sequin gown is a timeless choice for prom, black-tie events, formal galas, and evening celebrations. Black remains the ultimate power color—refined, versatile, and always in style.

Designed for both structure and comfort, the gown features stretch sequin fabric over a soft lining, a natural waistline, and a secure center back zipper. The asymmetrical back mirrors the neckline for a cohesive, fashion-forward look.

Limited sizes remain in 30, 32, and 38. These hard-to-find sizes are nearly gone. If Black is your color, now is the moment to make it yours.

Love this silhouette? See Flawless in Hunter Green, Purple, Red, and Pearlescent White,  each offering you a unique take on this glamorous style.

• Slim silhouette
• Stretch sequin fabric
• Floor length
• Hollow to hem measures 61 inches
• Asymmetrical neckline
• Fitted bodice
• Lined bodice
• One shoulder strap, long sleeve
• Lined sleeve
• Natural waistline
• Fitted skirt
• Right leg slit
• Skirt fully lined in stretch knit
• Asymmetrical back
• Center back zipper
• Sweep train

• Model is 5'10 inches tall wearing a size 16
• Fit to your waist
• Allow for alterations
• Spot clean only

Need sizing help?
Contact our Fashion Team.

Q: Is this one-shoulder sequin dress comfortable enough to wear all night?

A: Yes. The experts at Sydney's Closet designed this black sequin formal gown with a stretch knit lining and flexible construction that allows the slim fitted style to move with your body making sure you can sit, dance, and enjoy your special night in comfortable and with ease.

Q: Will the high slit feel too revealing or hard to walk in?

A: The slit in the slim skirt is designed to balance drama with comfort. It allows for easy movement while creating a flattering, leg-lengthening effect without feeling overexposed

Q: Is a black sequin gown appropriate for formal or black-tie events?

A: Absolutely. Black sequins are a timeless choice for formal occasions. This gown is a perfect choice for black-tie events, galas, prom, or any evening where you want a polished, elegant look.

We ship UPS for all domestic retail shipments.

Transit Times:

- Ground (3-5 business days)
- Three-Day Air (3 business days)
- Two-Day Air (2 business days)
- Overnight Air (1 business day)

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Whenever possible, we exchange merchandise for size, color or another style. Sydney's Closet offers free ground shipping to send you the exchange item(s).

All returns need a RA to be processed. You must get a RA within 5 (five) days of receiving your items.

Follow the instructions on our returns & exchanges portal.