Strapless neckline

Also called: Straight across (when cut level), Tube top

Highlights and balances

Highlights

Shows the shoulders, arms and collarbones
Lets a necklace or an updo take center stage

Wear it when

Events it suits

Pairs with

Silhouettes: Ball gown, Mermaid, A-line
Necklines: Sweetheart
Lengths: Floor length
Fabrics: Satin, Mikado

Avoid if

You would rather not adjust the bodice through the evening
The ceremony expects covered shoulders, unless you add a wrap or bolero
The venue is cold

A good fit at the top of the bodice matters more than anywhere else; boning and a grip strip keep it in place.

A strapless neckline leaves nothing over the shoulders. There are no straps and no sleeves, only a bodice built firmly enough to stay in place by itself. Among dress necklines, it is one you will see on evening gowns, prom dresses and wedding looks, where the shoulders and arms stay open.

How to spot a strapless neckline

Check the top edge first. It either runs level across the chest or rises into two curves, and no fabric crosses the shoulders. Then turn the bodice inside out. Boning along the seams and a grip strip at the top edge are the structure that holds the dress up.

Two terms get mixed up with it:

Sweetheart: a sweetheart neckline names the shape of the top edge, curving over each side of the bust to a center point, and it can come with straps or sleeves. Strapless only means nothing goes over the shoulder, so one dress can be both.
Off-the-shoulder: an off-the-shoulder neckline also bares the shoulders and collarbones, but straps or short sleeves wrap the upper arms. A strapless bodice leaves the arms completely free.

Wearing a strapless neckline well

Structure matters most here. Satin and mikado both hold a firm bodice shape, and mikado keeps a sculpted line in place. The bare top also sets up a clear contrast with a full skirt, which is why a ball gown or an A-line skirt pairs well with it. A mermaid shape works too if you want a fitted line all the way to the knee.

Spend your fitting time on the top of the bodice, since that is where a strapless dress succeeds or fails. Sit down, reach forward and try a few dance steps before you commit.

For a black tie wedding, try a floor-length satin A-line gown with a single pendant or an updo, which the open neckline sets off. Pack a wrap for a chilly room or a ceremony that asks for covered shoulders.

FAQ

Is a strapless neckline formal?

It suits black tie, black tie optional, formal and cocktail attire. A floor-length strapless gown reads as the most formal. On a knee-length cocktail dress, it reads as dressy without being full evening wear.

Can I wear a strapless dress to a summer wedding?

Yes, it is a good match, because heat favors open shoulders and lighter fabrics. If the ceremony expects covered shoulders, bring a bolero or wrap and take it off for the reception.

How do I keep a strapless dress from slipping?

Get the top edge fitted closely to you, since boning and a grip strip only work when the fit is snug. If you would rather not tug at a bodice all night, compare other options in the necklines glossary.