Open Back Maxi Dress

GANNI x RTR

4
(56 Reviews)

Product Details

The GANNI Open Back Maxi Dress brings effortless style with a fun open back and a relaxed fit. Throw on some sandals and a crossbody bag for a laid-back, yet stylish vibe.

Materials and Measurements

Green plaid & checked (51% Recycled Polyester, 44% Recycled PA, 5% Elastane). Casual dress. Square neck. Sleeveless. Pull on. Shoulder to hemline length: 58.5". Imported.

Size and Fit

Sized: EU 32- EU 44

The model is wearing a size EU 36. 

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Ratings &
Reviews

  (56)  

Includes written reviews and customer fit feedback.

Fit
Runs Small
True to Size
Runs Large

All Photos

Top Contributor
Size worn:
42
Overall fit:
True to Size
Usually wears: 12
Height: 5' 8"
Weight: 165lbs
Browse Jewel's reviews
July 4th, 2025
Boom Bop Bam

It took me a minute to figure out how to properly tighten the straps but baby once I put two and two together! I was whole - a whole snack ok.

Overall Fit

Just right

Chest

Just right

Arms & Shoulders

Just right

Waist

Just right

Hips

Just right

Length

Just right

Top Contributor
Size worn:
34
Overall fit:
True to Size
Rented for:
Vacation
Usually wears: 4
Height: 5' 2"
Bust size: 32C
Body type: Hourglass
Weight: 119lbs
Browse Michaella's reviews
July 14th, 2025
Stretchy and comfortable

Comfortable but form fitting. The ties in the back are a little messy but it's a nice elevated casual dress

Top Contributor
Size worn:
44
Overall fit:
True to Size
Rented for:
Wedding
Usually wears: 10
Height: 5' 8"
Bust size: 36B
Body type: Athletic
Weight: 180lbs
Browse Elizabeth's reviews
July 1st, 2025
Casual rooftop Brooklyn wedding

Soooooooo. Goooood. Loved the material and fit. Not sure why or how anyone could give this a bad review. Flattering and just perfect.

Top Contributor
Size worn:
42
Overall fit:
True to Size
Rented for:
Vacation
Usually wears: 10
Height: 5' 7"
Bust size: 38B
Body type: Pear
Weight: 165lbs
Browse Jyoti's reviews
June 25th, 2025
statement summertime color

Loved this dress for a warm winery visit. The fabric is stretchy, with tie string straps that make the neckline adjustable to your liking. Would rent again.

Top Contributor
Size worn:
32
Overall fit:
True to Size
Rented for:
Vacation
Usually wears: 0
Height: 5' 4"
Bust size: 32A
Body type: Pear
Weight: 115lbs
Browse Victoria 's reviews
June 11th, 2025
So cute

I would buy this dress. The straps were a little long but I was able to tuck them under the tie and it was fine. Would be better for bigger chested too with a Sticky bra. I really loved this dress

Top Contributor
Size worn:
38
Overall fit:
True to Size
Usually wears: 6
Height: 5' 9"
Bust size: 34B
Body type: Straight & Narrow
Weight: 150lbs
Browse April's reviews
July 1st, 2025
Loved!

Very cute! It's a little thin material but still flattering

Overall Fit

Just right

Top Contributor
Size worn:
32
Overall fit:
True to Size
Usually wears: 0
Height: 5' 7"
Bust size: 34B
Body type: Athletic
Weight: 120lbs
Browse Tori's reviews
June 13th, 2025
Love the material & adjustable straps

So freaking cute. However, like others have said, it does show EBERY bump and curve.

Overall Fit

Just right

Top Contributor
Size worn:
34
Overall fit:
True to Size
Usually wears: 2
Height: 5' 3"
Bust size: 34A
Body type: Straight & narrow
Weight: 115lbs
Browse Mackenzie's reviews
May 10th, 2025
Loved this dress!

This dress was great! The material was so stretchy and comfortable. I got so many compliments on it. Definitely a great/easy summer dress. The back is very open but loved the tie details. I wasn't sure if I was going to love based on the ecom images but it was such a great surprise!

Overall Fit

Just right

Team RTR
Size worn:
40
Overall fit:
True to Size
Rented for:
Work
Usually wears: 6
Height: 5' 6"
Body type: Straight & narrow
Weight: 145lbs
Browse Amy's reviews
July 21st, 2025
Obsessed

Supppper stretchy for my 30 week pregnant belly! The fabric is thin so it def shows all the things, but we’re far past caring at this point. Love the color, flounce at bottom, and cute strap details

Top Contributor
Size worn:
36
Overall fit:
True to Size
Rented for:
Date
Usually wears: 4
Height: 5' 3"
Bust size: 34D
Body type: Hourglass
Weight: 125lbs
Browse Lindley's reviews
June 14th, 2025
V Cute

I loved it. It’s a little thinner than expected but it’s really fun and the straps are adjustable. Great for 4.5 months pregnant.

Top Contributor
Size worn:
44
Overall fit:
True to Size
Usually wears: 8
Height: 5' 7"
Bust size: 34A
Body type: Hourglass
Weight: 170lbs
Browse Amanda's reviews
June 5th, 2025
Low key sexy green dress

Size worn:
36
Overall fit:
True to Size
Rented for:
Wedding
Usually wears: 4
Height: 5' 9"
Body type: Straight & narrow
Browse RTR Member's reviews
June 4th, 2025
Loved it - so sad I can't buy it, I want it so bad!!!

Fit well but would buy a size down as the back was a little gapey since my chest is small, was able to make it fit well but it definitely wasn't how it was meant to fit exactly in the back.

Top Contributor
Size worn:
38
Overall fit:
True to Size
Rented for:
Vacation
Usually wears: 6
Height: 5' 5"
Bust size: 36B
Body type: Hourglass
Weight: 144lbs
Browse Jenny's reviews
May 25th, 2025
Super comfortable!!

This dress was so lovely! The fabric was so nice and very good quality. The weather was quite hot and the fabric was breathable and quite comfortable in spite of the heat. I highly recommend this dress.

Team RTR
Size worn:
44
Overall fit:
True to Size
Rented for:
Everyday
Usually wears: 8
Height: 5' 5"
Body type: Pear
Browse Katherine's reviews
May 7th, 2025
Perfect for everyday + bump friendly

Getting dressed for work everyday has been an odyssey at 6mos pregnant but this dress made it so easy! Made of VERY forgiving stretchy fabric while also hugging all the right parts of the waist. Adjustable in the back. Might buy

Top Contributor
Size worn:
36
Overall fit:
True to Size
Rented for:
Everyday
Usually wears: 4
Height: 5' 8"
Bust size: 34D
Body type: Athletic
Weight: 130lbs
Browse Dilan's reviews
May 6th, 2025
Beautiful summer dress

Loved this super cute summer dress! It’s really comfy and perfect for hot days. Not the best if you need to wear a bra, but the tie back straps make it easy to adjust for a good fit. Totally a go to for a sunny day brunch

Top Contributor
Size worn:
40
Overall fit:
True to Size
Rented for:
Everyday
Usually wears: 8
Height: 5' 5"
Bust size: 34B
Body type: Straight & narrow
Weight: 150lbs
Browse Catherine's reviews
May 4th, 2025
The way the dress moves - chef’s kiss

Yes! The skirt of this dress moves so beautifully. You can feel it swirl around you as you walk and it is absolutely luxurious. I love the color and the fabric. The fabric isn’t “flat” but rather textured - super cool. The straps are adjustable and the bow can help adjust bust fit. It is very flattering, while form fitting not true “body con” or anything. It moves well and is classy. I really liked it if you can’t tell lol. Fits TTS, not bra friendly but could wear pasties. I think the intended look is a bit bare. I love the open back and to style more modestly did an oversized navy belted blazer, was fire. I also styled it with an oversized white jean jacket with brown buttons and I loved that casual look too- it was giving Hamptons. You can tell how well designed it is when you wear it - would rent again! Very cute and I want to try the other Ganni dress in same fabric different cut.

Top Contributor
Size worn:
36
Overall fit:
True to Size
Usually wears: 2
Height: 5' 8"
Bust size: 34A
Body type: Straight & Narrow
Weight: 135lbs
Browse RTR Member's reviews
May 14th, 2025
Cute but fits weird

Looked very cute how I styled it but the straps are not adjustable which can cause issues if you have boobs. I am very flat chested so wasn't an issue. Also fabric is comfortable but not forgiving at all it shows any stomach pooch lol

Overall Fit

Just right

Top Contributor
Size worn:
40
Overall fit:
True to Size
Rented for:
Vacation
Usually wears: 6
Height: 5' 11"
Body type: Athletic
Weight: 160lbs
Browse Haley's reviews
June 9th, 2025
Has stretchy material and adjustable straps

Top Contributor
Size worn:
42
Overall fit:
True to Size
Rented for:
Vacation
Usually wears: 10
Height: 5' 7"
Bust size: 36D
Body type: Athletic
Weight: 155lbs
Browse Rayleen's reviews
May 21st, 2025
Super customizable fit.

Between the adjustable straps and the tie back this made for a great fit. I’m very short waisted so I have a lot of issues with strap length. Color and pattern were great. 4 stars because the material is not the most forgiving, I couldn’t wear any shapewear due to the low back. Used nip covers, otherwise it would have been a bit naughty.

Top Contributor
Size worn:
36
Overall fit:
True to Size
Usually wears: 4
Height: 5' 3"
Bust size: 32B
Body type: Hourglass
Weight: 138lbs
Browse Bruna's reviews
July 22nd, 2025
10/10!

Such a beautiful dress, fit like a glove! Perfect for any summer occasion.

Overall Fit

Just right

Length

Just right

Top Contributor
Size worn:
36
Overall fit:
True to Size
Usually wears: 6
Height: 5' 9"
Bust size: 32A
Body type: Athletic
Weight: 150lbs
Browse Gabi's reviews
May 25th, 2025
Great Stretch Fabric

Love this dress, so cute, fit great! So many compliments. The stretch makes it great for a lot of body types.

Overall Fit

Just right

Waist

Just right

Hips

Just right

Length

Just right

Top Contributor
Size worn:
36
Overall fit:
True to Size
Usually wears: 4
Height: 5' 7"
Bust size: 34B
Body type: Athletic
Weight: 140lbs
Browse Meredith's reviews
May 24th, 2025
waist - snatched!

so cute! There are a lot of ties in the back I don't love, but overall the dress fit so good

Overall Fit

Just right

Chest

Just right

Arms & Shoulders

Just right

Waist

Just right

Hips

Just right

Length

Just right

Top Contributor
Size worn:
36
Overall fit:
True to Size
Rented for:
Other
Usually wears: 4
Height: 5' 3"
Bust size: 34C
Body type: Hourglass
Weight: 127lbs
Browse Janette's reviews
July 18th, 2025
Great Pop of Color

Loved the color and the fit. I wore it to a BBQ and paired it with sandals.

Top Contributor
Size worn:
36
Overall fit:
True to Size
Rented for:
Party
Usually wears: 4
Height: 5' 9"
Bust size: 32C
Body type: Straight & narrow
Weight: 130lbs
Browse Jazmyne's reviews
July 14th, 2025
Bright fun dress

Great fit. Stretchy material so really comfortable.

Top Contributor
Size worn:
38
Overall fit:
True to Size
Rented for:
Everyday
Usually wears: 6
Height: 5' 3"
Bust size: 34B
Body type: Pear
Weight: 155lbs
Browse Tonya's reviews
June 28th, 2025
Flattering AF

Keeping it in rotation. Makes my whole body look great! Hugs in the right places. What more can I say. Thinking about buying.

Top Contributor
Size worn:
38
Overall fit:
True to Size
Rented for:
Vacation
Usually wears: 4
Height: 5' 8"
Bust size: 34D
Body type: Hourglass
Weight: 129lbs
Browse Teri's reviews
June 27th, 2025
Gorgeous!

This is a must try dress. It's right but not too tight. Very flattering.

Top Contributor
Size worn:
32
Overall fit:
True to Size
Rented for:
Wedding
Usually wears: 0
Height: 5' 3"
Body type: Petite
Weight: 110lbs
Browse Dani's reviews
June 2nd, 2025
Perfect length

Super flattering cut. Adjustable straps. The material is stretchy and comfortable.

Top Contributor
Size worn:
36
Overall fit:
True to Size
Rented for:
Everyday
Usually wears: 6
Height: 5' 3"
Body type: Petite
Weight: 135lbs
Browse Ylan's reviews
May 2nd, 2025
So cute!! Fit perfectly with adjustable straps

The fabric is light for summer and the color is beautiful, I wore it 5+ times.

Top Contributor
Size worn:
38
Overall fit:
True to Size
Usually wears: 4
Height: 5' 10"
Bust size: 34A
Body type: Athletic
Weight: 135lbs
Browse Caroline's reviews
May 12th, 2025
Made it work for wedding at 25 wks preg

Overall Fit

Just right

Top Contributor
Size worn:
38
Overall fit:
True to Size
Usually wears: 6
Height: 5' 3"
Weight: 140lbs
Browse Brady 's reviews
May 9th, 2025
Comfortable!

Overall Fit

Just right

Top Contributor
Size worn:
36
Overall fit:
Large
Usually wears: 4
Height: 5' 7"
Weight: 138lbs
Browse Tyler's reviews
June 13th, 2025
Size down.

Slightly big due to the straps being stretchy and so long. Definitely size down with this one. But its such a cute style and the color is perfect for spring or summer.

Overall Fit

Runs big

Chest

Runs big

Arms & Shoulders

Runs big

Waist

Runs big

Hips

Just right

Length

Just right

Top Contributor
Size worn:
40
Overall fit:
True to Size
Usually wears: 10
Height: 5' 11"
Body type: Hourglass
Weight: 192lbs
Browse Vanessa's reviews
June 13th, 2025
Cute!

Straps were long and had to be tied for this dress to work, but it was cute and nice fabric!

Overall Fit

Just right

Top Contributor
Size worn:
32
Overall fit:
True to Size
Usually wears: 0
Height: 5' 1"
Bust size: 30DD
Body type: Petite
Weight: 110lbs
Browse Kathryn's reviews
May 14th, 2025
Fine!

Stretchy material (I wore my normal size at 30 weeks pregnant). Straps are also adjustable. The top doesn't give much support, but otherwise I enjoyed the dress for dinner.

Overall Fit

Just right

Size worn:
40
Overall fit:
True to Size
Rented for:
Formal Affair
Usually wears: 10
Height: 5' 5"
Body type: Hourglass
Weight: 155lbs
Browse Talia brecher's reviews
August 1st, 2025
Bright and adjustable

Fit loose and comfortable and was a nice bright green

Size worn:
36
Overall fit:
Small
Usually wears: 4
Height: 5' 7"
Body type: Hourglass
Weight: 140lbs
Browse Gracey's reviews
July 20th, 2025
Much tighter than anticipated! Definitely size up

Top Contributor
Size worn:
40
Overall fit:
True to Size
Rented for:
Vacation
Usually wears: 8
Height: 5' 7"
Bust size: 34C
Body type: Athletic
Weight: 150lbs
Browse Sarah's reviews
July 15th, 2025
Such a beautiful color and loved the fabric

I loved the fabric and the color but I didn’t wear it a ton. FYI - You can’t wear a normal bra with this dress. Also, it really hugs every curve. I felt like it accentuated my tummy

Top Contributor
Size worn:
36
Overall fit:
Small
Rented for:
Everyday
Usually wears: 4
Height: 5' 2"
Bust size: 34C
Body type: Hourglass
Weight: 125lbs
Browse Katherine's reviews
July 11th, 2025
Cute but not forgiving

Top Contributor
Size worn:
38
Overall fit:
True to Size
Rented for:
Party
Usually wears: 6
Height: 5' 6"
Bust size: 34B
Body type: Pear
Weight: 148lbs
Browse Nicole's reviews
June 25th, 2025
Cute

Top Contributor
Size worn:
38
Overall fit:
True to Size
Rented for:
Everyday
Usually wears: 6
Height: 5' 6"
Bust size: 34B
Body type: Hourglass
Weight: 150lbs
Browse Alex's reviews
June 20th, 2025
Cute but straps detach

Fun color for the summer, good fit but material is a tad thin. It is stretchy so expands to your body. Only issue was the straps detach easily

Top Contributor
Size worn:
36
Overall fit:
True to Size
Rented for:
Party
Usually wears: 4
Height: 5' 5"
Bust size: 32B
Body type: Athletic
Weight: 135lbs
Browse Gem's reviews
May 29th, 2025
Strings at back are weird

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