Plus Size Black Sequin Cocktail Dress with Sleeves

Sleek, bold, and endlessly versatile, our Onyx Black version of this sequin cocktail dress with sleeves is the definition of modern glamour. The deep onyx base allows the shimmer to stand out with a subtle edge, creating a look that feels both timeless and striking.

Designed to enhance your shape, the figure-flattering silhouette hugs in all the right places while remaining comfortable and easy to wear. Long sleeves provide the coverage so many women are looking for—balancing sparkle with a polished, confident feel. Crafted in stretch sequin fabric with a comfortable lining, this dress moves with you from cocktails to the dance floor.

Its clean, streamlined finish makes it easy to dress up or down depending on the moment. From holiday parties to nights out and wedding celebrations, this is the plus size party dress with sleeves you reach for when you want to feel instantly put together.

Limited Sizes in Stock - Onyx Black is almost sold out.  Once it’s gone, it’s gone.  Don’t miss your chance to own this sparkly look.

Love this silhouette? Also check out the Emerald Green, Sapphire Blue, and Ruby Red, each color bringing its own high energy to this signature sequin look.

• Slim silhouette
• Stretch sequin fabric
• Above knee length
• Hollow to hem measures 37 inches
• Scoop neckline
• Fitted bodice
• Lined bodice
• Bra-friendly straps
• Lined sleeves
• Natural waistline
• Fitted skirt
• Right leg slit
• Skirt fully lined in stretch knit
• High back
• Center back zipper
• Makes any occasion sparkle

• Model is 5'8 inches tall wearing a size 16
• Style runs big
• Allow for alterations
• Spot clean only

Need sizing help?
Contact our Fashion Team.

Q: How does this silhouette flatter a curvy body?

A: The design enhances your natural shape by defining the waist and flowing smoothly over the hips, creating a balanced and elongating effect.

Q: Can this dress be worn for different types of events?

A: Yes, it’s versatile enough for weddings, formal parties, evening events, and even upscale celebrations.

Q: Is the fabric comfortable enough for long events?

A: Yes, the fabric is chosen to feel smooth against the skin while still holding its structure, so you can wear it comfortably for hours.

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.