Onyx Maxi Dress by Lauven, elegant black strappy back silhouette, ankle-length fit, smooth knitted fabric.

Onyx Maxi Dress

S
$143.00
Skip to product information
Onyx Maxi Dress by Lauven, elegant black strappy back silhouette, ankle-length fit, smooth knitted fabric.

Onyx Maxi Dress

Square Neckline Maxi Dress in Black

$143.00
Size
Size guide

Garment measurements — inches and centimetres.

Size Bust Waist
XS32" (81 cm)24" (61 cm)
S34" (86 cm)26" (66 cm)
M35.5" (91 cm)28" (71 cm)
L38" (97 cm)30" (76 cm)
XL40" (102 cm)33" (84 cm)

These are garment measurements, not body measurements. Cuts vary, so where a dress carries its own chart that chart is shown here instead. The surest method: measure a dress you already wear and compare.

Model wears size S · Height 5'8" (173 cm)

American Express Apple Pay Bancontact Google Pay Mastercard PayPal Przelewy24 Shop Pay Union Pay Visa
Arrives by 12 October A ceiling, not an average — nine orders in ten arrive sooner.

The Onyx Maxi Dress is made from a premium synthetic blend of polyester and spandex, featuring a smooth knitted fabric with high elasticity for a slim, figure-flattering fit. This elegant dress offers an ankle-length silhouette with wide shoulder straps and a modern square neckline that enhances its timeless appeal.

Read more

The standout feature is the open back with intricate criss-cross tie detailing, adding a contemporary and chic touch to the design. The pullover style closure and sleeveless profile ensure comfort and ease of wear, perfect for formal and evening occasions.

Ideal for upscale events, cocktail parties, and sophisticated gatherings, the Onyx Maxi Dress pairs beautifully with statement heels and subtle accessories. Its classic black hue provides versatile styling options for a polished, refined look.

Style Features
  • Wide shoulder straps with square neckline
  • Open back with criss-cross tie detail
  • Ankle-length maxi silhouette
  • Slim, stretch-enhanced fit
  • Soft, smooth synthetic knit fabric
Specifications
  • Materials & Fabric Composition: Polyester and Spandex blend
  • Care Instructions: Hand wash or gentle machine wash recommended
  • Size & Fit Details: Slim fit with high elasticity
  • Measurements: Model height 5'8" wearing size Small
  • Closure: Pullover style
Styling Guide
  • Wear with sleek heels to enhance the silhouette
  • Add minimalistic jewelry for elegant accents
  • Complete the look with a chic clutch in neutral tones

A modern maxi dress designed for elegant evenings and sophisticated style.

Perfect for formal events, cocktail parties, and upscale occasions.

Elevate your wardrobe with this timeless black maxi dress.

Product Details
  • Color: Black
  • Material: Polyester and Spandex
  • Pattern: Solid
  • Available Sizes: XS, S, M, L, XL
Sizing

Where the supplier listed it, the size and height of the model are shown under the size selector — use them as your reference point.

Garment measurements, fabric composition and care are in the Specifications section of the description above. Where a lining is used it is a full lining, not a half slip.

Why it takes what it takes

Cut and sewn in our partner workshop once you order. Your order reaches it in 1–2 business days — we measured 1.7.

Order at least four weeks before your event. See the measured delivery times for your country

Fabric & care

Fabric composition and care instructions are listed in the description above.

Where a lining is used it is a full lining, not a half slip.

The Lauven gift box, closed and tied with the black ribbon

The box

It arrives like this

Folded in printed tissue, sealed, and set in a white magnetic box tied with a ribbon. On top, a card signed by Laura, who founded Lauven in Edinburgh.

  • The Lauven black satin ribbon
  • The signed card beside the open box

White magnetic box, black satin ribbon, printed tissue, signed card.

Made to order, not made to sit

What Lauven The usual
The cut Sewn after you order Made in bulk, months ahead
The sizes Measurements published, size by size One block reused across styles
The date An arrival date, measured An estimate nobody measures
The stock Nothing made that nobody ordered Overstock, then markdowns

If it is not right on you

A dress is bought without trying it on. That is our problem to carry, not yours.

  • 30 days to change your mind
  • Unworn, tags still on
  • Return starts from your order page
  • Free delivery, tracked

Who you are buying from

A small team, one partner workshop, no warehouse. Your dress is made after you order it.

Write to help@lauven.shop — a person answers.

Best sellers

View all