Skip to content
Mix 5 panties for $45, every day
SexyUndie

Underwear for Backless Dress and Low Back Dresses

Under a backless dress, wear a seamless thong in your skin shade with bonded edges, $12, so nothing shows at the hips. For the bra, a strapless bra at $45 works when the back dips to mid-back, and nothing works better than going without when it drops to the waist.

Free US shipping over $50. Plain mailer, 3 to 7 business days.

5 styles

What to wear under a backless dress, by how low the back goes

How low the back drops decides everything, so check that before you pick a bra. Any strap, band or hook that sits below the neckline of the back will show. The panty question is easier: a bonded seamless edge in your skin shade disappears under most backless fabrics, since the back of a backless dress is rarely the problem and the hips often are.

Where the back endsBra optionPanty optionPrice
Between the shoulder blades (halter, high keyhole)Regular or plunge bra with the band hidden under the fabricNo-Show Seamless Thong$52 bra, $12 thong
Mid-back (bottom of the shoulder blades)Smooth Strapless Bra with straps removedNo-Show Seamless Thong$45 bra, $12 thong
Low back to the waistNo bra, or adhesive cups (we do not sell them)No-Show Seamless Thong or Seamless High-Rise Brief if the dress is not fitted$12
Very low back past the waistNoneThong, high waistband only if the dress covers it$12

Our strapless bra has a silicone-lined band and removable straps. Its band sits across the back, so it only suits cuts that leave the band covered. It is not a low-back bra, and for the lowest cuts we would rather tell you to skip it than sell you a bra that peeks out.

What underwear do you wear with a backless dress?

Wear a seamless thong in your skin tone with bonded edges and no sewn-on elastic. The No-Show Seamless Thong is $12 in Nude Deep and Black, with a 100 percent cotton gusset. If the dress is lined and loose at the hips, the Bonded Seamless Hipster at $12 gives more coverage with the same flat edge.

Pick the shade closest to your own skin, not the lightest one. A pair slightly lighter than your skin shows through thin fabric more than a pair slightly darker.

What bra do you wear with a backless dress?

It depends on the cut. For a halter or a high keyhole back, your usual bra can stay, because the band sits under the fabric. For a dress open to mid-back, try the Smooth Strapless Bra at $45 with the straps removed, and put it on in front of a mirror with the dress to see whether the band edge peeks out when you lift your arms.

For a back that opens to the waist, most women skip the bra, wear the dress as designed, or use adhesive cups. We do not carry adhesive cups, so we do not list them as a pick. If you need support, choose a different dress shape for that event.

Can you wear a bodysuit under a backless dress?

Not usually. A bodysuit runs a back panel up between the shoulder blades, which is the part a backless dress exposes. Our bodysuits are built for garments with a closed back, so skip them here and keep them for blouses and fitted dresses that cover the back.

A backless dress kit with prices

Most backless-dress buyers need the panty and sometimes the bra, so a kit is short:

  • High or mid back: 2 No-Show Seamless Thongs ($24) plus the Smooth Strapless Bra ($45) is $69.
  • Low back: 2 or 3 thongs. Any 3 panties are $32, any 5 are $45, and US shipping is free over $50.
  • Backup for a wedding or event: one extra thong in your bag, in case the first gets wet, snagged or just uncomfortable at hour six.

Order sizes in the usual XS to XXL range and check the seamless underwear for a bodycon dress page if the backless dress is also fitted through the hips. For wedding gowns, the bridal underwear page covers the dress options in more detail.

Underwear for Backless Dress and Low Back Dresses questions

What underwear do you wear with a backless dress?

A seamless thong in your skin tone with bonded edges is the safest option, since it leaves no seam at the hips or back. The No-Show Seamless Thong is $12 in Nude Deep and Black. The bra depends on how low the back opens, so check the cut first.

What do you wear under a low back dress?

Under a low back dress, a seamless thong plus either a strapless bra or no bra. A strapless bra works when the back dips to mid-back. When the back opens to the waist, most women skip the bra, since any band would show.

Can you wear a strapless bra with a backless dress?

Yes, when the back is cut to mid-back or higher and the band stays covered. Our Smooth Strapless Bra is $45 in Black or Nude Deep with removable straps and a silicone-lined band. For a back that opens to the waist, the band will show.

What kind of underwear for a backless wedding dress?

Wear a seamless thong in a shade that matches your skin, and a strapless bra if the dress back allows one. Many backless gowns have built-in cups, so you may not need a bra. Try everything with the dress at the final fitting.

What color underwear should I wear under a backless dress?

Choose a shade as close to your skin as possible, not white. For a black backless dress, black underwear works too, but a skin-tone thong is safer if the fabric is thin or semi sheer. Nude Deep covers deeper skin tones, with Blush for fair skin.

How much is a pack of seamless underwear?

Any 3 panties are $32, any 5 are $45 and any 7 are $55, with any mix of cuts, colors and sizes. Seamless and cotton panties are $12 individually, while lace and satin are $15. Bras are priced separately.