• Women's black backless V-neck maxi dress by BYMANYC New York, shown from behind.
  • Women's black backless V-neck maxi dress by BYMANYC New York with a side slit, front view.
  • BYMANYC collection image: Manhattan Mosaic jacket. Not the item sold on this page.
  • BYMANYC collection image: Manhattan Mosaic jacket. Not the item sold on this page.
  • BYMANYC collection image: Manhattan Mosaic jacket. Not the item sold on this page.
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BYMANYC ® New York

Women's Black Backless V-Neck Maxi Dress

Women's Black Backless V-Neck Maxi Dress

$387.95 USD
$387.95 USD
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✅ In Stock: 30+ units available.
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  • Ships To: United States
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Product Type: Maxi Dress

This dress makes three separate decisions and they all point the same way: a deep V at the front, an open back, and a slit up the leg. In black, floor length, cut close through the body in a polyester and spandex blend.

What a Backless Cut Demands

An open back removes the option of conventional underwear, which is a practical fact rather than a warning. Adhesive or stick-on support is what this dress is designed around, and knowing that before it arrives is better than finding out an hour before an event.

What it gives back is the cleanest line a long dress can have. There is no strap, no band, no seam interrupting the back at all.

How a Leg Slit Changes Walking

A floor-length dress without a slit constrains the stride: you take shorter steps and the hem does the rest. A slit gives the stride back and changes the dress from something you stand in to something you move in.

The stretch blend is the other half of that. Polyester and spandex give across the body, so a close cut does not fight sitting down, which is where most fitted long dresses fail.

Choosing Where the Back Shows

Two evenings this is exactly right for. One where you will be seen walking away as much as arriving: a room you cross, a staircase, a dance floor. And one where the dress is the entire outfit and jewelry would only compete with the neckline.

It asks for a warm room, and a drafty tent in October is not it. That is a seasonal limit rather than a lifestyle one, and a black floor-length dress is the single most reusable thing in most evening wardrobes.

Size and Fit Guidance

Three bands are cut for this dress, published by BYMANYC in inches and measured on the wearer rather than on the finished garment.

Size US Bust Waist Hip
S US 4-6 34-35 in 26-27 in 36-37 in
M US 8-10 36-37 in 28-29 in 38-39 in
L US 12-14 38-40 in 30-32 in 41-42 in

Measure the bust at its fullest with the tape level under the arms, the waist at its narrowest, and the hip around the widest point, keeping the tape snug but not tight and taking every figure over what you intend to wear underneath.

Stretch buys real tolerance here, so the band matching your bust usually works even where the hip reads a size up. Read the bust first, since an open back leaves nothing across the shoulder blades to take up slack.

Before You Order

Is black floor length safe at black tie? Yes, and this is the length that dress code means. What makes it a decision rather than a default is the back, which is on view for as long as you are walking away from someone.

Is the slit fixed? It is sewn to a set height rather than adjustable, so what the photographs show is what arrives.

Why does a slit matter on a long dress? Without one, a floor-length hem shortens every step. The slit is what makes stairs and a crowded room manageable in it.

Is it made to order? Yes. BYMANYC produces this range once an order exists rather than holding stock.

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