Swirl Backless Dress

Louna

4.5
(82 Reviews)

Product Details

This trippy body-skimming midi by Louna has a surprising open back adding a subtle sexy touch.

Materials and Measurements

Multicolor abstract knit (50% Viscose, 30% Nylon, 20% Polyester). Sweater Sheath. Sleeveless. Mock neck. Tie closure. 47.5" from shoulder to hemline. Imported.

Size and Fit

Sized: XS-L

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Ratings &
Reviews

  (82)  

Includes written reviews and customer fit feedback.

Fit
Runs Small
True to Size
Runs Large

All Photos

Top Contributor
Size worn:
M
Overall fit:
True to Size
Usually wears: 8
Height: 5' 5"
Bust size: 38B
Body type: Hourglass
Browse Roselle's reviews
March 8th, 2025
So fun!

This was better quality than I thought it'd be! Thicker material and very comfy!

Overall Fit

Just right

Top Contributor
Size worn:
L
Overall fit:
True to Size
Rented for:
Vacation
Usually wears: 10
Height: 5' 2"
Bust size: 36DDD/E
Body type: Hourglass
Weight: 180lbs
Browse Christian's reviews
January 18th, 2025
Hugged the curves

I am all about comfort and looking put together quickly with minimal effort. This dress fits the bill. This was a great dress for vacay. I did forget the back had a little opening. Cute for vacation, couldn’t wear this with clients at work.

Top Contributor
Size worn:
M
Overall fit:
Large
Rented for:
Everyday
Usually wears: 8
Height: 5' 0"
Bust size: 32D
Body type: Petite
Weight: 125lbs
Browse Jane's reviews
July 21st, 2023
Cute dress! Love the pattern

The dress is so cute but the material is a little thick to wear during a hot summer day. If you’re short, the dress is long and the opening back will show a lot of backside.

Top Contributor
Size worn:
M
Overall fit:
True to Size
Rented for:
Date
Usually wears: 4
Height: 5' 10"
Bust size: 34DDD/E
Body type: Hourglass
Weight: 148lbs
Browse Sarah's reviews
May 8th, 2023
Cute & Comfy Fit

I got this dress for an upcoming Vegas trip but wore it on an impromptu date night. I love the style and fit. The cutout in the back is very low so I could not wear the shape wear that I had planned. It is knit so maybe a little thick for summer outings but, overall would recommend!

Top Contributor
Size worn:
S
Overall fit:
True to Size
Usually wears: 4
Height: 5' 4"
Body type: Pear
Weight: 137lbs
Browse Jessica's reviews
September 15th, 2025
Sexy and comfortable

I loved this dress! It fit great and it was so comfortable. The design was figure flattering.

Overall Fit

Just right

Chest

Just right

Arms & Shoulders

Just right

Waist

Just right

Hips

Just right

Length

Just right

Top Contributor
Size worn:
XS
Overall fit:
True to Size
Rented for:
Date
Usually wears: 2
Height: 5' 1"
Bust size: 34C
Body type: Petite
Weight: 125lbs
Browse Michelle's reviews
September 3rd, 2025
Surprisingly sexy!

I was not crazy about the pattern on this, but once I put it on, wow! The back is what makes this dress special. It is definitely form-fitting. The fabric is really thick too, like a sweater... I definitely wouldn't say this is a summer dress! I'll have to wait for cooler temps to wear it, but this was a sleeper favorite purchase.

Top Contributor
Size worn:
M
Overall fit:
True to Size
Rented for:
Party
Usually wears: 6
Height: 5' 7"
Bust size: 34D
Body type: Athletic
Weight: 160lbs
Browse Jordyn's reviews
June 23rd, 2025
Hugged in all the right places!

I loved this dress so much I bought it! I needed a dress for a bachelorette that needed 60’s vibes in sunset colors. This little dress hit the mark. It is super thick and the open back comes down fairly low, just a few FYIs for the undergarment situation. Loved it!!

Top Contributor
Size worn:
XS
Overall fit:
True to Size
Rented for:
Vacation
Usually wears: 2
Height: 5' 3"
Bust size: 32B
Body type: Petite
Weight: 128lbs
Browse Nikki's reviews
May 30th, 2025
Sexy and form fitting

My husband saw me in this and asked if I could buy it! Fit like a glove. Had to wear pasties, but I didn’t have an issue with my underwear showing - I just wore a low rise one.

Top Contributor
Size worn:
S
Overall fit:
True to Size
Rented for:
Date
Usually wears: 4
Height: 5' 4"
Bust size: 32D
Body type: Hourglass
Weight: 125lbs
Browse Cameron's reviews
May 27th, 2025
Cute and comfy

I wore out to my anniversary dinner and felt so comfortable and cute! Love the print. Easy to wear!

Top Contributor
Size worn:
S
Overall fit:
True to Size
Rented for:
Other
Usually wears: 4
Height: 5' 8"
Bust size: 32DD
Body type: Hourglass
Weight: 135lbs
Browse Caoilinn's reviews
August 27th, 2024
So cute and comfy

Very flattering dress and love the open back with the tie. Material is pretty thick knit but it’s super comfy. Wore to a birthday brunch and got a lot of compliments on it. Will rent again!

Top Contributor
Size worn:
XS
Overall fit:
True to Size
Rented for:
Date
Usually wears: 0
Height: 5' 3"
Bust size: 30C
Body type: Hourglass
Weight: 115lbs
Browse Brittney's reviews
July 15th, 2024
Bright and sexy, lots of compliments

This dress is made of a thick material that worked perfectly for dinner in 67 degree weather. It hugs your curves just right. The material is forgiving with bright, beautiful colors and a sexy cut out in the Because I’m petite, the dress fit me like a little longer than a midi so walking was a challenge as there’s no slit. The material has a little stretch to it, but not enough to allow ease for walking long distances. I ended up folding the bottom of the dress up to shorten the hem so I could walk with a normal stride, then rolled it back down when I got to the restaurant and it was fine. I had to wear a sticky bra b/c the back cut out went up too high to work with any other bra w/o showing.

Top Contributor
Size worn:
S
Overall fit:
True to Size
Rented for:
Party
Usually wears: 4
Height: 5' 3"
Bust size: 34B
Body type: Petite
Weight: 130lbs
Browse Tessa's reviews
July 7th, 2024
Rent this dress!

Loved this dress. Wore it to a groovy themed baby shower. Material was thick in a good away and had some stretch. Super comfortable. Fits and molds to all the right places. It's a yes!

Top Contributor
Size worn:
L
Overall fit:
True to Size
Rented for:
Everyday
Usually wears: 8
Height: 5' 9"
Bust size: 36D
Body type: Hourglass
Browse Alexa's reviews
July 7th, 2024
Incredible pattern

Wore at 38 weeks and felt amazing. Highly recommend

Top Contributor
Size worn:
L
Overall fit:
True to Size
Rented for:
Party
Usually wears: 10
Height: 5' 11"
Bust size: 36C
Body type: Hourglass
Weight: 185lbs
Browse Dianna's reviews
March 13th, 2024
Thick material that hugs

Wore this to dinner with a gf and out dancing! loved it!

Top Contributor
Size worn:
XS
Overall fit:
True to Size
Rented for:
Date
Usually wears: 0
Height: 5' 7"
Bust size: 32C
Body type: Hourglass
Weight: 113lbs
Browse Grecia's reviews
October 6th, 2023
Sexy and comfortable!

The dress is so comfortable and also sexy! The overall fit is great but not tight. And the back detail makes it really special.

Top Contributor
Size worn:
S
Overall fit:
True to Size
Rented for:
Everyday
Usually wears: 4
Height: 5' 4"
Bust size: 32C
Body type: Apple
Weight: 140lbs
Browse Madeleine's reviews
August 9th, 2023
It’s FANTASTIC

I think I could have gotten away with a smaller size, but this was a very comfortable fit. This is the perfect summer dress- I wore it for the Barbie premiere but because of the really low back would also wear it for a dressier occasion like a summer cocktail attire wedding or a date night!

Top Contributor
Size worn:
L
Overall fit:
True to Size
Rented for:
Party
Usually wears: 8
Height: 5' 8"
Body type: Athletic
Weight: 185lbs
Browse Maddie's reviews
July 27th, 2023
Great for bachelorette party

Top Contributor
Size worn:
M
Overall fit:
True to Size
Rented for:
Date
Usually wears: 4
Height: 5' 6"
Bust size: 34C
Body type: Hourglass
Weight: 135lbs
Browse Raquel's reviews
July 23rd, 2023
So fun and comfy!

The color and pattern is so cool and the dress is super comfy

Top Contributor
Size worn:
M
Overall fit:
True to Size
Rented for:
Date
Usually wears: 8
Height: 5' 5"
Bust size: 34DD
Body type: Pear
Weight: 165lbs
Browse Chastity's reviews
June 16th, 2023
Very sexy and fun

Great material, design and fit overall. I kept it, I think I may purchase 😊

Top Contributor
Size worn:
S
Overall fit:
True to Size
Rented for:
Date
Usually wears: 6
Height: 5' 9"
Bust size: 32G
Body type: Athletic
Weight: 155lbs
Browse Ashle's reviews
June 14th, 2023
Rent this dress!

Compliments all day and the cutout in the back is everything!

Top Contributor
Size worn:
S
Overall fit:
True to Size
Rented for:
Party
Usually wears: 4
Height: 5' 4"
Bust size: 34C
Body type: Apple
Weight: 137lbs
Browse Joana's reviews
June 12th, 2023
Breathable and fun

This dress was so comfortable to wear. The material is a sweater material but it is still very breathable. I loved this dress so much 🤍

Top Contributor
Size worn:
M
Overall fit:
True to Size
Rented for:
Everyday
Usually wears: 6
Height: 5' 3"
Bust size: 32DD
Body type: Petite
Weight: 135lbs
Browse Jenna's reviews
June 1st, 2023
Comfy and cute!

Wore this on a girls trip at 6 months pregnant. Usually a small and sized up to a medium - fit great! The back hole was pretty low and I’m short so that was a little tricky, but worked fine.

Top Contributor
Size worn:
S
Overall fit:
True to Size
Usually wears: 2
Height: 5' 2"
Bust size: 32B
Body type: Petite
Weight: 120lbs
Browse Ariana's reviews
May 23rd, 2023
Got so many compliments! Gorgeous back!

Top Contributor
Size worn:
S
Overall fit:
Large
Rented for:
Party
Usually wears: 6
Height: 5' 2"
Bust size: 36A
Body type: Hourglass
Weight: 145lbs
Browse Jessica's reviews
August 24th, 2023
Sexy dress for a night out

I usually wear a medium but I’m glad I sized down. Even with sizing down.. I felt it a little loose in certain areas. It was a nice dress. Be careful with the panties u wear because it shows. The cut in the back of the dress is low.

Top Contributor
Size worn:
S
Overall fit:
True to Size
Rented for:
Vacation
Usually wears: 6
Height: 5' 5"
Bust size: 34C
Body type: Pear
Weight: 140lbs
Browse Bailey's reviews
August 15th, 2023
Beautiful print and back!

Loved the back of the dress and the print! The front looks a little odd, but that’s most likely just because of my body type! Super fun

Top Contributor
Size worn:
S
Overall fit:
True to Size
Rented for:
Everyday
Usually wears: 6
Height: 5' 4"
Bust size: 34C
Body type: Hourglass
Weight: 142lbs
Browse Perla's reviews
July 29th, 2023
Second attempt and unsure what size fits best

I wore a size medium prior to this and I loved the fit but the back slit was a bit low and kept showing my underwear. I rented a size small this time and it was definitely more fitted and shorter, which I liked. It looked good BUT, I think I liked the lower slit in the back because it was sexier. If I rent again I’d rent a medium.

Top Contributor
Size worn:
S
Overall fit:
True to Size
Rented for:
Everyday
Usually wears: 2
Height: 5' 9"
Bust size: 34C
Body type: Hourglass
Weight: 130lbs
Browse Erica's reviews
July 9th, 2023
Open back a little large but still cute!

The open back made it hard to coordinate with under garments but I loved the bright colors and it was a nice length. Definitely can be dressed up or down which is nice.

Top Contributor
Size worn:
S
Overall fit:
True to Size
Rented for:
Other
Usually wears: 6
Height: 5' 7"
Bust size: 34B
Body type: Hourglass
Weight: 140lbs
Browse Courtney's reviews
May 30th, 2023
Loved the pattern but not the most flattering!

Loved this dress because of the fun pattern. Wore this on vacation in Grand Cayman. Thought it was very fun but wasn't extremely flattering. Very comfy though!

Top Contributor
Size worn:
M
Overall fit:
Large
Usually wears: 12
Height: 5' 1"
Bust size: 36B
Body type: Petite
Weight: 150lbs
Browse Sophie's reviews
May 23rd, 2023
Not flattering if you have a tummy

Really cute dress, very thick and high quality knit. Unfortunately not very flattering on me. Back is very low- wouldn’t be able to wear underwear if you’re 5’1 or shorter.

Top Contributor
Size worn:
S
Overall fit:
Large
Rented for:
Everyday
Usually wears: 4
Height: 5' 3"
Bust size: 32DDD/E
Body type: Petite
Weight: 120lbs
Browse Catherine's reviews
May 23rd, 2023
Not ideal for petite & curvy

Huge FAIL for me. The pattern highlighted my flaws & it was too long, even in 5” heels. It’s a moderately thick, stretchy knit but the pale pink still showed cellulite & it hit right at the tops of my thighs. Surprisingly I was able to wear normal undergarments with the open back but it was so unflattering I immediately changed into something else. Best suited for someone tall with more of a “straight & narrow” build who might be looking to create curves.

Top Contributor
Size worn:
S
Overall fit:
True to Size
Rented for:
Date
Usually wears: 2
Height: 5' 2"
Bust size: 34B
Body type: Petite
Weight: 130lbs
Browse Christie's reviews
May 22nd, 2023
Not for Petites!!! Shows backside.

Petites cannot wear this dress, because the cut out in the back is too low and shows your backside, which is really unfortunate, because the color and print of the dress was beautiful UNTIL i turned around and saw the back. This dress is also like more of a thicker sweater type material.

Top Contributor
Size worn:
S
Overall fit:
True to Size
Rented for:
Party
Usually wears: 2
Height: 5' 3"
Bust size: 34B
Body type: Athletic
Weight: 120lbs
Browse Emily's reviews
July 6th, 2025
So Fun

Flattering and loved the open back.

Top Contributor
Size worn:
XS
Overall fit:
True to Size
Rented for:
Party
Usually wears: 0
Height: 5' 3"
Bust size: 30DD
Body type: Petite
Weight: 105lbs
Browse Katie's reviews
June 11th, 2025
Gorg color and print!

Very fun and fitted! Back is super cute - it gaped a little for me but not too badly. Loved this dress!

Top Contributor
Size worn:
S
Overall fit:
True to Size
Rented for:
Vacation
Usually wears: 4
Height: 5' 8"
Bust size: 34C
Body type: Athletic
Weight: 137lbs
Browse Amy's reviews
December 28th, 2024
Great color and pattern but heavy fabric and wrinkling at midsection detracted

This was a great vacation piece - the colors and pattern are fun and tropical, and it’s super easy to pack without worrying about wrinkling. However, it wasn’t quite as flattering on as I had hoped. Accentuated the mid-section with weird wrinkling and it would have been better without underwear as you see every last fabric bump. Also, the material was heavy for a warm weather dress- it worked as I was in heavy air conditioning but in some vacation spots it would have been uncomfortably warm and itchy

Top Contributor
Size worn:
S
Overall fit:
True to Size
Rented for:
Other
Usually wears: 4
Height: 5' 5"
Bust size: 32A
Body type: Pear
Weight: 110lbs
Browse Laura's reviews
August 7th, 2025
Challenging, didn’t wear

I had high hopes, couldn’t do it. If someone younger with a great tan who is cool with forgoing underwear and showing off nipples wanted to give this one a shot, I would suggest a cool spring or fall evening, with a jacket/shrug, because the fabric is way too heavy for a sleeveless summer night. Good luck!

Top Contributor
Size worn:
L
Overall fit:
True to Size
Usually wears: 8
Height: 5' 6"
Bust size: 34D
Weight: 155lbs
Browse RTR Member's reviews
May 8th, 2025
Great bump friendly maternity dress!

Wore this while on a babymoon and got lots of compliments. Very flattering!

Overall Fit

Just right

Top Contributor
Size worn:
S
Overall fit:
True to Size
Usually wears: 6
Height: 5' 2"
Bust size: 34D
Body type: Pear
Weight: 150lbs
Browse Erin's reviews
April 28th, 2025
Loved it for cold day at the beach

Perfect for a chilly day at the beach.

Overall Fit

Just right

Chest

Just right

Waist

Runs big

Hips

Just right

Length

Too Long

Top Contributor
Size worn:
S
Overall fit:
True to Size
Usually wears: 4
Height: 5' 4"
Weight: 136lbs
Browse Sheila's reviews
April 28th, 2025
Great Fit

Received many compliments when I wore this dress.

Overall Fit

Just right

Chest

Just right

Arms & Shoulders

Just right

Waist

Just right

Hips

Just right

Length

Just right

Top Contributor
Size worn:
M
Overall fit:
True to Size
Usually wears: 6
Height: 5' 5"
Bust size: 34C
Body type: Hourglass
Weight: 145lbs
Browse Sherhara's reviews
September 23rd, 2024
Perfect fit!

Warm material. It's a summer look but not a summer feel. But I wore it anyway, and I was hot. But indoors, I was fine.

Overall Fit

Just right

Chest

Just right

Arms & Shoulders

Just right

Waist

Just right

Hips

Just right

Length

Just right

Top Contributor
Size worn:
XS
Overall fit:
True to Size
Usually wears: 2
Height: 5' 2"
Weight: 110lbs
Browse Samantha's reviews
September 2nd, 2024
great quality

super comfy and flattering on waist & butt. thick fabric

Overall Fit

Just right

Chest

Just right

Arms & Shoulders

Just right

Waist

Just right

Hips

Just right

Length

Just right

See more reviews:
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