Oversize Tunic Dress

Martin Grant

4.5
(61 Reviews)

Product Details

Crisp stripes and a billowy oversized fit underscore the relaxed-yet-refined look of this season-essential dress by Martin Grant.

Style with the Natural Oversized Lola Bag from Bembien. 

Materials and Measurements

Blue cotton (100% Cotton). Shift. Split neck. Short sleeves. Pull-on. 48" from shoulder to hemline. 7.5" slit. Imported.

Size and Fit

Sized: 34-42, French sizing

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Ratings &
Reviews

  (61)  

Includes written reviews and customer fit feedback.

Fit
Runs Small
True to Size
Runs Large

All Photos

Top Contributor
Size worn:
36
Overall fit:
Large
Rented for:
Vacation
Usually wears: 4
Height: 5' 10"
Bust size: 32D
Body type: Straight & narrow
Weight: 145lbs
Browse Allison's reviews
June 19th, 2023
Great coverup

Wore this to the beach on vacation and it was perfect! Felt chic!

Top Contributor
Size worn:
34
Overall fit:
True to Size
Rented for:
Vacation
Usually wears: 0
Height: 5' 4"
Bust size: 32B
Body type: Athletic
Weight: 115lbs
Browse Kimberly's reviews
October 27th, 2022
Perfect vacation dress

I want to buy this one! I wore it walking around the streets of San Miguel and I was so comfortable and felt so chic. It’s oversized but not sloppy. Loved it.

Top Contributor
Size worn:
36
Overall fit:
Large
Rented for:
Everyday
Usually wears: 4
Height: 5' 4"
Bust size: 32D
Body type: Hourglass
Weight: 130lbs
Browse Rachel's reviews
August 15th, 2022
Coastal (Grandmother) Chic dress goes from a walk with a dog to office with compliments

Pros The material is an exceptionally high quality cotton that breathes and moves while resisting wrinkles. I wore this outdoors in dangerous heat and indoors in air conditioning and I was comfortable in both settings. The side sluts provide a glimpse of leg to keep the lines of the dress fluid with your body. Deep pockets are great. Loads of compliments whenever I wore this dress. Neutral The oversized style and cut mean you can order down. Cons Might not be your style but consider trying.

Top Contributor
Size worn:
38
Overall fit:
True to Size
Usually wears: 6
Height: 5' 5"
Bust size: 36B
Body type: Petite
Weight: 135lbs
Browse Marilyn's reviews
August 29th, 2025
Classy muumuu

I loved it! Good for everyday or vacation if you like sun coverage. Material a bit heavy for super hot weather but the weight was nice & didn’t wrinkle

Top Contributor
Size worn:
36
Overall fit:
True to Size
Rented for:
Everyday
Usually wears: 4
Height: 5' 1"
Bust size: 32B
Body type: Petite
Weight: 130lbs
Browse Isabella's reviews
September 4th, 2024
perfect everyday summer dress

loved this with flip flops, sandals, or sneakers! the perfect easy throw on dress and the length was great on me!

Top Contributor
Size worn:
38
Overall fit:
True to Size
Rented for:
Everyday
Usually wears: 4
Height: 5' 4"
Body type: Pear
Browse Kristen's reviews
June 11th, 2024
Comfy and easy

Top Contributor
Size worn:
38
Overall fit:
True to Size
Rented for:
Everyday
Usually wears: 4
Height: 5' 4"
Bust size: 34B
Body type: Athletic
Weight: 125lbs
Browse Lauren's reviews
December 18th, 2023
Sooo comfy

Wore this multiple times. Great fit, great vibe.

Top Contributor
Size worn:
38
Overall fit:
Large
Usually wears: 6
Height: 5' 9"
Body type: Hourglass
Browse Sara grace's reviews
June 16th, 2023
Chic rich coastal grandma vibes

I love RTR for things like this. A $1k dress I’d never buy but instantly refreshes my closet for a few weeks. Size down (could maybe even go 2 sizes down)

Top Contributor
Size worn:
38
Overall fit:
True to Size
Rented for:
Vacation
Usually wears: 2
Height: 5' 3"
Bust size: 32DD
Body type: Hourglass
Weight: 120lbs
Browse Claire's reviews
January 4th, 2023
Classy coverup

Enjoyed wearing this repeatedly on vacation in St. Barth, out to lunch and on the beach. It was big and airy - though it did get a little hot at times in the direct sun. I think this was one size bigger than I normally wear but it fit great anyway.

Top Contributor
Size worn:
38
Overall fit:
True to Size
Rented for:
Everyday
Usually wears: 6
Height: 5' 7"
Bust size: 34C
Body type: Athletic
Weight: 135lbs
Browse Stacy's reviews
June 2nd, 2023
"It’s not you, it's me" -- me, to this dress

Just not my style. All the good everyone else has said applies, so I can't really dock many stars. And the fit was as right as it was going to be for this much fabric. Tried belting, but....meh.

Top Contributor
Size worn:
38
Overall fit:
True to Size
Rented for:
Vacation
Usually wears: 4
Height: 5' 5"
Bust size: 34C
Body type: Athletic
Weight: 130lbs
Browse Deb's reviews
December 1st, 2022
Got this for beach vacation to a resort...

But the trip got cancelled - would have been PERFECT resort wear! I did wear it on a casual afternoon that was unseasonably warm but it did seem a bit out of place for November! Would rent again.

Top Contributor
Size worn:
38
Overall fit:
True to Size
Rented for:
Everyday
Usually wears: 4
Height: 5' 5"
Bust size: 34A
Body type: Straight & narrow
Weight: 125lbs
Browse Shannon's reviews
August 31st, 2022
Mumu magic

Not really sure how it does it, but this dress is magic. It feels like pjs but is somehow super chic. It moves and is structured in just the right way to make it great. Perfect for the tail end of a way too hot summer.

Top Contributor
Size worn:
38
Overall fit:
True to Size
Rented for:
Vacation
Usually wears: 4
Height: 5' 6"
Bust size: 34D
Body type: Straight & narrow
Weight: 130lbs
Browse Victoria's reviews
July 12th, 2022
Very comfortable. Fabric was a bit heavier than expected so it did get hot.

Top Contributor
Size worn:
38
Overall fit:
Large
Rented for:
Everyday
Usually wears: 2
Height: 5' 9"
Bust size: 34B
Body type: Straight & narrow
Weight: 140lbs
Browse Kirby's reviews
October 17th, 2025
Just ok

I’m new to caftans. I only rented this because I’m 5 months pregnant and I don’t think I would rent it again. It’s very voluminous and not flattering. I like it with my baby bump but if I wasn’t pregnant I’m pretty sure I would be swimming in this dress.

Top Contributor
Size worn:
38
Overall fit:
Large
Rented for:
Vacation
Usually wears: 6
Height: 5' 2"
Bust size: 32DDD/E
Body type: Hourglass
Browse Claire's reviews
October 16th, 2025
Cute oversized look for vacation

Wore on recent travel in Morocco - perfect for cute sightseeing and definitely a more conservative look ( which I was looking for on this trip). Recommend for the right scenario

Top Contributor
Size worn:
36
Overall fit:
True to Size
Usually wears: 4
Height: 5' 7"
Bust size: 34B
Body type: Pear
Weight: 120lbs
Browse Samantha's reviews
March 31st, 2025
Perfect Summer Dress

I would have purchased if it wasn't so pricey!

Overall Fit

Just right

Chest

Just right

Arms & Shoulders

Just right

Waist

Just right

Hips

Just right

Length

Just right

Top Contributor
Size worn:
38
Overall fit:
Large
Usually wears: 6
Height: 5' 9"
Bust size: 34C
Body type: Straight & narrow
Weight: 142lbs
Browse Jessica's reviews
March 22nd, 2025
So flattering!

I went with a size larger than I think would have been perfect due to availability. This was still really flattering and fun. I got stopped at the airport to ask where it was from. Perfect for a beach vacation. Really comfortable.

Overall Fit

Runs big

Top Contributor
Size worn:
36
Overall fit:
Large
Usually wears: 4
Height: 5' 8"
Bust size: 34A
Body type: Straight & narrow
Weight: 130lbs
Browse Cara's reviews
March 21st, 2025
Great vacation dress

Wore this as a cover up and out to dinner for Hawaiian vacation. Versatile!

Overall Fit

Runs big

Chest

Just right

Arms & Shoulders

Just right

Waist

Just right

Hips

Just right

Length

Just right

Top Contributor
Size worn:
38
Overall fit:
True to Size
Usually wears: 6
Height: 5' 4"
Bust size: 32G
Body type: Hourglass
Weight: 145lbs
Browse RTR Member's reviews
February 15th, 2025
Perfect for my cruise

Really nice breathable material that flowed well. It worked as a coverup, or was nice paired with some strappy sandals. Didn't wrinkle at all when packed.

Overall Fit

Just right

Top Contributor
Size worn:
36
Overall fit:
Large
Usually wears: 2
Height: 5' 2"
Bust size: 34B
Body type: Hourglass
Weight: 122lbs
Browse Laura's reviews
October 16th, 2024
Can size down!

Lots of material so you can size down! Chic beach wear!!

Overall Fit

Runs big

Top Contributor
Size worn:
38
Overall fit:
Large
Usually wears: 6
Height: 5' 7"
Bust size: 36C
Body type: Hourglass
Weight: 145lbs
Browse Jess's reviews
August 19th, 2024
Great for bump - but still enormous

Wore this a few times between 22-25 weeks pregnant. It's huge and comfy. I found it better wearing a belt to add some shape. I love the structure of the neckline.

Overall Fit

Runs big

Top Contributor
Size worn:
40
Overall fit:
True to Size
Usually wears: 8
Height: 5' 6"
Bust size: 32G
Body type: Hourglass
Weight: 160lbs
Browse Adia's reviews
July 23rd, 2025
Easy

Loved the pockets and airy feel. Think of this is a very fancy muumuu dress. Incredibly comfortable and easy to wear. I paired it with my favorite orange Birkenstocks.

Top Contributor
Size worn:
40
Overall fit:
True to Size
Usually wears: 6
Height: 5' 7"
Bust size: 34B
Body type: Athletic
Weight: 157lbs
Browse Catherine's reviews
April 26th, 2025
Great flowy dress

Loved this dress for an oversized flowy look. Perfect for working from home or a beach vacation.

Top Contributor
Size worn:
36
Usually wears: 4
Height: 5' 4"
Bust size: 34B
Body type: Petite
Weight: 133lbs
Browse Anne's reviews
January 15th, 2025
second time i have rented for beach vacation.

flowy and fun. size down

Top Contributor
Size worn:
38
Overall fit:
True to Size
Rented for:
Everyday
Usually wears: 4
Height: 5' 7"
Bust size: 34A
Body type: Pear
Weight: 125lbs
Browse Kate 's reviews
September 5th, 2024
Loved. Versatile. Wore to beach, track meets, work , lounging, plane, always looked expensive a

Rent u won’t be disappointed. But slit is higher than pic shows.

Top Contributor
Size worn:
34
Overall fit:
True to Size
Rented for:
Everyday
Usually wears: 2
Height: 5' 5"
Bust size: 32B
Body type: Pear
Weight: 122lbs
Browse Elizabeth williams's reviews
August 28th, 2024
Great dress

Although billed as "oversized," I did not feel that the roominess was overwhelming. I also wore it with a tie belt, which worked well.

Top Contributor
Size worn:
36
Overall fit:
True to Size
Rented for:
Vacation
Usually wears: 2
Height: 5' 8"
Bust size: 32C
Body type: Straight & narrow
Weight: 140lbs
Browse Christie's reviews
April 2nd, 2024
Perfectly Oversized fit !

Loved it for vacation and back home for a night out.

Top Contributor
Size worn:
42
Overall fit:
True to Size
Rented for:
Vacation
Usually wears: 10
Height: 5' 3"
Bust size: 36DD
Body type: Hourglass
Weight: 158lbs
Browse Katherine's reviews
March 12th, 2024
must have vacation dress!

I took this dress to Hawaii and it came in very handy for both beach days and casual dinners.

Top Contributor
Size worn:
40
Overall fit:
True to Size
Rented for:
Everyday
Usually wears: 6
Height: 5' 5"
Bust size: 34C
Body type: Athletic
Weight: 135lbs
Browse Louisa's reviews
September 1st, 2023
Perfect summer dress

Easy to throw on but still looks put together. High quality material, but still lightweight. Would buy if wasn’t so $$$

Top Contributor
Size worn:
38
Overall fit:
True to Size
Rented for:
Vacation
Usually wears: 4
Height: 5' 6"
Bust size: 32C
Body type: Hourglass
Weight: 130lbs
Browse Leah's reviews
July 26th, 2023
Amazing caftan that looks great with wide belt

Wore this a few times with a super wide yellow belt and loved it

Top Contributor
Size worn:
34
Overall fit:
True to Size
Rented for:
Everyday
Usually wears: 2
Height: 5' 2"
Bust size: 34A
Body type: Petite
Weight: 110lbs
Browse Allise's reviews
May 21st, 2023
Love this

oversized but in a good way. loved it.

Top Contributor
Size worn:
42
Overall fit:
True to Size
Rented for:
Everyday
Usually wears: 8
Height: 5' 6"
Bust size: 36C
Body type: Hourglass
Browse Jessica's reviews
March 23rd, 2023
LOVE!

Love a throw on dress - it is oversized in all the right ways. Would also make a great coverup but perfect for running around town!

Top Contributor
Size worn:
38
Overall fit:
Large
Rented for:
Vacation
Usually wears: 4
Height: 5' 9"
Body type: Athletic
Browse Liz's reviews
February 21st, 2023
Size down. Received many compliments, great easy piece.

Top Contributor
Size worn:
36
Overall fit:
True to Size
Rented for:
Everyday
Usually wears: 4
Height: 5' 5"
Bust size: 32DD
Body type: Athletic
Weight: 130lbs
Browse Stephanie's reviews
October 8th, 2022
Quintessential cool girl caftan!

This was such a joy to wear-easy, carefree, cool and with pockets! Perfect! Runs big so size down

Top Contributor
Size worn:
34
Overall fit:
True to Size
Usually wears: 0
Height: 5' 7"
Bust size: 34B
Body type: Straight & narrow
Weight: 125lbs
Browse Rachel's reviews
June 1st, 2022
Perfectly oversized yet refined

Wore to a 2 year olds birthday with Birks then hosted an upscale dinner in pumps. Perfectly oversized yet polished.

Size worn:
40
Overall fit:
Large
Rented for:
Everyday
Usually wears: 8
Browse Hilary's reviews
May 26th, 2022
Loves it! Stylish!

It runs big but that is to be expected. I loved the style.

Top Contributor
Size worn:
38
Overall fit:
Large
Rented for:
Vacation
Usually wears: 6
Height: 5' 7"
Bust size: 30G
Body type: Hourglass
Weight: 135lbs
Browse Victoria's reviews
April 21st, 2022
Perfect chic beach cover up

Rented this as a cover up for a recent beach trip and it was a total knockout! Makes even a bathing suit and flip flops look chic and elevated. Definitely runs very large so size way down if you're wanting something that's a bit more form fitting.

Top Contributor
Size worn:
40
Overall fit:
Large
Usually wears: 6
Height: 5' 9"
Bust size: 36B
Body type: Hourglass
Weight: 160lbs
Browse Anna's reviews
March 25th, 2025
Chic coverup or dress

Overall Fit

Runs big

Top Contributor
Size worn:
38
Overall fit:
Large
Usually wears: 4
Height: 5' 5"
Bust size: 34B
Weight: 120lbs
Browse Maggie's reviews
September 21st, 2024
This dress is magic

Overall Fit

Runs big

Top Contributor
Size worn:
38
Usually wears: 2
Height: 5' 5"
Bust size: 34C
Body type: Petite
Weight: 133lbs
Browse Hyo jung's reviews
October 13th, 2025
Best maternity clothing!

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