Puff Sleeve Dress

Derek Lam 10 Crosby x RTR

4.5
(109 Reviews)

Product Details

Military chic meets strong feminine touches in this button-up puff sleeve midi dress by Derek Lam Collective.

Materials and Measurements

Black twill (95% Recycled Polyester, 5% Spandex). Hourglass. Short sleeves. Collar. Front button closure. 48.5" from shoulder to hemline. Imported.

Size and Fit

Sized: 34-54, Italian sizing.

Model is 5'9 and wearing a size 40.

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Ratings &
Reviews

  (109)  

Includes written reviews and customer fit feedback.

Fit
Runs Small
True to Size
Runs Large

All Photos

Top Contributor
Size worn:
40
Overall fit:
Large
Usually wears: 8
Height: 5' 4"
Bust size: 32G
Body type: Hourglass
Weight: 140lbs
Browse Michelle's reviews
May 12th, 2025
Very comfortable and chic

Love this dress. It's a classic work dress with a little flare. It tugged across the chest a bit but not enough to not wear it.

Overall Fit

Runs big

Chest

Runs small

Top Contributor
Size worn:
42
Overall fit:
Large
Usually wears: 4
Height: 5' 9"
Bust size: 36A
Body type: Pear
Weight: 140lbs
Browse Sarah's reviews
March 24th, 2025
Very nice quality, beautifully tailored

I didn't get to wear this due to weather but it was lovely. I wanted to keep it!

Overall Fit

Runs big

Length

Just right

Top Contributor
Size worn:
42
Overall fit:
True to Size
Rented for:
Work
Usually wears: 6
Height: 5' 6"
Bust size: 34C
Body type: Full Bust
Weight: 145lbs
Browse Jess's reviews
December 28th, 2024
Gorgeous

So many compliments and made me feel Chic

Top Contributor
Size worn:
44
Overall fit:
True to Size
Rented for:
Work
Usually wears: 8
Height: 5' 9"
Bust size: 36D
Body type: Hourglass
Weight: 163lbs
Browse Liliana 's reviews
November 7th, 2024
Simple

I good work dress

Top Contributor
Size worn:
40
Overall fit:
True to Size
Rented for:
Work
Usually wears: 4
Height: 5' 5"
Bust size: 34C
Body type: Hourglass
Weight: 134lbs
Browse Melissa's reviews
July 2nd, 2024
Polished and Smart

So easy to wear and travel with. The details are amazing - bright gold buttons and blue stitching. There’s even extra material in the shoulders so it gives some structure. I really love this dress and am not ready to return - but the lady who chased me down in the airport is probably ready to rent it by now ;)

Top Contributor
Size worn:
48
Overall fit:
True to Size
Rented for:
Work
Usually wears: 12
Height: 5' 8"
Bust size: 36H
Body type: Apple
Weight: 180lbs
Browse Kimberly's reviews
July 1st, 2024
Black with blue contrast stitching

I wish someone had shared a close up picture! The dress is BLACK not navy & had bright blue contrast stitching. There are no buttons- they are all gold snaps. Every snap is functioning- even on the shoulders. They are secure, but make sure they are fully snapped closed (I learned the hard way leaning over). The tie needs to be knotted to stay tied! This material will not wrinkle or crumple, even if you roll it up into a ball. The material was light weight enough to keep me cool on a 90° plus work day and running errands. This dress is my favorite Derek Lam so far- and that's a high standard. Every Derek Lam dress I get is better than the last one! I will absolutely budget to buy this one.

Top Contributor
Size worn:
44
Overall fit:
Large
Rented for:
Work
Usually wears: 4
Height: 5' 6"
Bust size: 34B
Body type: Hourglass
Weight: 138lbs
Browse Regan's reviews
June 26th, 2024
Ordered a size to big but could tie the waist

Top Contributor
Size worn:
42
Overall fit:
True to Size
Rented for:
Work
Usually wears: 6
Height: 5' 9"
Bust size: 32C
Body type: Straight & narrow
Weight: 145lbs
Browse Lisa's reviews
May 29th, 2024
Trendy work dress

The blue stitching and cargo-style pockets made the dress fashionable, while still being very easy to wear and flattering

Top Contributor
Size worn:
46
Overall fit:
True to Size
Rented for:
Work
Usually wears: 8
Height: 5' 4"
Bust size: 36C
Body type: Hourglass
Weight: 160lbs
Browse Lindsey's reviews
May 10th, 2024
Professional and great quality

I loved this dress! Awesome material, well-made, and very comfortable. I felt elegant, modern, and professional wearing it at a conference this week.

Top Contributor
Size worn:
48
Overall fit:
True to Size
Rented for:
Work
Usually wears: 10
Height: 5' 4"
Bust size: 38DD
Body type: Full Bust
Weight: 164lbs
Browse Jodi's reviews
May 10th, 2024
Fantastic work dress

Top Contributor
Size worn:
40
Overall fit:
True to Size
Usually wears: 4
Height: 5' 3"
Bust size: 34C
Body type: Pear
Weight: 150lbs
Browse Lindsey's reviews
May 10th, 2024
So great I bought it

Absolutely wonderful work dress. Lux materials and detailing elevate the black dress into something memorable. Sizing was perfect for me.

Top Contributor
Size worn:
50
Overall fit:
True to Size
Usually wears: 12
Height: 5' 9"
Bust size: 38C
Body type: Full Bust
Weight: 191lbs
Browse RTR Member's reviews
May 5th, 2024
Nice work outfit

Fit well and was comfortable.

Top Contributor
Size worn:
44
Overall fit:
True to Size
Rented for:
Work
Usually wears: 8
Height: 5' 10"
Bust size: 34B
Body type: Hourglass
Weight: 165lbs
Browse Michelle's reviews
April 29th, 2024
Dream work or conference dress

The fit and overall structure were impeccable, making it incredibly easy to wear. A definite standout piece from office to dinner.

Top Contributor
Size worn:
46
Overall fit:
True to Size
Rented for:
Party
Usually wears: 10
Height: 5' 3"
Body type: Full Bust
Weight: 147lbs
Browse Ana's reviews
March 27th, 2024
Very comfortable! Really nice material.

Wore to a party and got lots of compliments. Fit nicely.

Top Contributor
Size worn:
40
Overall fit:
True to Size
Rented for:
Work
Usually wears: 2
Height: 5' 4"
Bust size: 32D
Body type: Athletic
Weight: 130lbs
Browse Jordan's reviews
March 23rd, 2024
Great work travel dress!

Wore this to an all day site visit, did not show sweat, wrinkle, or attract any lint! Would be great if you are traveling or need something to wear to work for extended hours you will look put together all day!

Top Contributor
Size worn:
40
Overall fit:
True to Size
Rented for:
Work
Usually wears: 2
Height: 5' 7"
Bust size: 34B
Body type: Pear
Weight: 118lbs
Browse Shelley's reviews
February 26th, 2024
Great quality!

This dress was perfect for a business dinner.

Top Contributor
Size worn:
40
Overall fit:
True to Size
Rented for:
Vacation
Usually wears: 6
Height: 5' 3"
Body type: Hourglass
Weight: 125lbs
Browse Mcclane's reviews
January 14th, 2024
So flattering!

Loved this dress! Wore it to church and a formal dinner. Great fit and was so flattering. The length was great on be, but I’m on the short side

Top Contributor
Size worn:
40
Overall fit:
True to Size
Rented for:
Work
Usually wears: 4
Height: 5' 7"
Body type: Hourglass
Weight: 145lbs
Browse Jasmine's reviews
January 14th, 2024
I loved this dress!

Very easy and comfortable. Structured but not tight or stiff. It was perfect for work.

Top Contributor
Size worn:
44
Overall fit:
True to Size
Rented for:
Party
Usually wears: 6
Height: 5' 6"
Body type: Pear
Weight: 150lbs
Browse Shannon's reviews
January 3rd, 2024
PERFECT CLASSY DRESS

Literally my favorite dress I’ve rented on RTR and I regret not buying it

Top Contributor
Size worn:
40
Overall fit:
True to Size
Rented for:
Work
Usually wears: 4
Height: 5' 4"
Bust size: 34C
Body type: Pear
Weight: 127lbs
Browse Alexis's reviews
November 30th, 2023
Loved!

I loved this military-style dress. I wore it to work and on date night. I especially loved the neckline, gold buttons, and length of the dress. It fit very TTS. Wish I could buy!

Top Contributor
Size worn:
38
Overall fit:
True to Size
Rented for:
Work
Usually wears: 2
Height: 5' 7"
Bust size: 34B
Body type: Hourglass
Weight: 128lbs
Browse Barbi's reviews
November 1st, 2023
Classy and breezy

A definite one to rent again - lightweight ease, stretch, comfort and class.

Top Contributor
Size worn:
46
Overall fit:
True to Size
Rented for:
Work
Usually wears: 10
Height: 5' 6"
Bust size: 34DD
Body type: Pear
Weight: 145lbs
Browse Katie's reviews
October 29th, 2023
Sophisticated looking dress and super comfy

Loved this dress. Though it’s generally a simple cut, the gold buttons take it from “nice” to “wow!”. It’s very comfortable. The sleeves are a bit oversized which I thought was a nice detail. If you are short, you might find the length awkward. I’m 5’6” and the length was fine on me. I’d rent this again.

Top Contributor
Size worn:
42
Overall fit:
True to Size
Rented for:
Work
Usually wears: 8
Height: 5' 10"
Bust size: 34D
Body type: Hourglass
Weight: 155lbs
Browse Cheyanne's reviews
October 23rd, 2023
Perfect work look

Loved this look for the office - felt professional but still comfy and luxe. True to size!

Top Contributor
Size worn:
42
Overall fit:
True to Size
Rented for:
Work
Usually wears: 4
Height: 5' 9"
Bust size: 34B
Body type: Straight & narrow
Weight: 130lbs
Browse Zoe's reviews
October 18th, 2023
Perfect for work event

Had outside work event at a winery it was comfortable and long.

Top Contributor
Size worn:
46
Overall fit:
True to Size
Rented for:
Work
Usually wears: 8
Height: 5' 11"
Bust size: 32DDD/E
Body type: Hourglass
Browse Martha's reviews
October 4th, 2023
all time great rental

Dream work dress- high quality, interesting detail, super flattering. Would buy asap if I could

Top Contributor
Size worn:
42
Overall fit:
True to Size
Rented for:
Work
Usually wears: 6
Height: 5' 4"
Bust size: 36D
Body type: Hourglass
Weight: 131lbs
Browse Lynda 's reviews
September 23rd, 2023
Great Work Dress

Comfortable, stylish and professional. Wore it to interview candidates at my company’s Job Fair. Perfection! Lots of compliments, too.

Top Contributor
Size worn:
46
Overall fit:
True to Size
Rented for:
Work
Usually wears: 10
Height: 5' 10"
Bust size: 36B
Body type: Athletic
Weight: 155lbs
Browse Katie's reviews
September 20th, 2023
What work dress dreams are made off

This dress checks all the boxes. It’s flattering, packable (did need a steam) and looks fashionable yet professional. I wore it to a Board meeting and felt great.

Top Contributor
Size worn:
42
Overall fit:
True to Size
Rented for:
Work
Usually wears: 6
Height: 5' 11"
Bust size: 32DD
Body type: Hourglass
Weight: 145lbs
Browse Sandra's reviews
September 18th, 2023
Best work rental yet

This dress couldn’t fit better if it was custom. Beautiful quality and perfect fit No wrinkles!

Top Contributor
Size worn:
36
Overall fit:
True to Size
Rented for:
Work
Usually wears: 0
Height: 5' 0"
Bust size: 32C
Body type: Petite
Weight: 105lbs
Browse Alicia's reviews
October 16th, 2023
Military School Matron

I was expecting this to be navy blue and denim for some reason, my expectations were completely off. Instead, it was black and a fancier fabric. The look was severe and honestly, I felt like I should be running a military school instead of working with teachers at an elementary school. It really wasn’t my style, but the fit was good and the dress was well made.

Top Contributor
Size worn:
42
Overall fit:
True to Size
Rented for:
Work
Usually wears: 6
Height: 5' 6"
Bust size: 36C
Body type: Apple
Weight: 130lbs
Browse Bernadette's reviews
March 18th, 2025
Great Dress for Work

The one size did not come with a belt, so I wore my own, very flattering, got lots of compliments at a work event.

Top Contributor
Size worn:
42
Overall fit:
True to Size
Rented for:
Work
Usually wears: 4
Height: 5' 7"
Body type: Straight & narrow
Weight: 145lbs
Browse Christy's reviews
May 31st, 2024
Pretty Blue Stitching Detail

Really liked this dress - only gave 4 stars because I didn’t love “puff” at shoulders. Very easy to wear and buttons make it so easy to take on and off. Was pleasantly surprised with the blue stitching detail.

Top Contributor
Size worn:
40
Overall fit:
True to Size
Usually wears: 4
Height: 5' 3"
Bust size: 36B
Body type: Athletic
Weight: 126lbs
Browse Irena's reviews
April 6th, 2024
Structured standout

Derek Lam knows how to structure a dress. Fabric is comfy and fit isn’t too restrictive. Deducted a star for the way the buttons are because you have to go all the way to the collar which isn’t my preferred but it worked for this one. Wore w flats at 5’3 and length was great.

Top Contributor
Size worn:
40
Overall fit:
True to Size
Usually wears: 4
Height: 5' 6"
Bust size: 34B
Body type: Athletic
Weight: 135lbs
Browse Erika's reviews
June 4th, 2025
In love!

I probably could have sized down but it was still so flattering--I loved it and got so many compliments. Extremely comfortable! The blue stitching really elevates 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:
36
Overall fit:
True to Size
Usually wears: 2
Height: 5' 5"
Bust size: 34B
Body type: Hourglass
Weight: 120lbs
Browse Amanda's reviews
April 30th, 2025
The perfect winter dress

Received so many compliments - great for work, lunches, dinners

Overall Fit

Just right

Chest

Just right

Arms & Shoulders

Just right

Waist

Runs small

Hips

Just right

Length

Just right

Top Contributor
Size worn:
44
Overall fit:
True to Size
Usually wears: 8
Height: 5' 7"
Bust size: 36B
Body type: Straight & narrow
Weight: 148lbs
Browse Amy's reviews
November 11th, 2024
Gorgeous and well fitting

Would definitely rent again. Wish I had an other occasion so I could have worn it twice.

Overall Fit

Just right

Top Contributor
Size worn:
42
Overall fit:
True to Size
Usually wears: 8
Height: 5' 7"
Bust size: 36A
Body type: Pear
Weight: 145lbs
Browse Emily's reviews
November 8th, 2024
Great dress!

Loved this dress. High-quality fabric, flatterigg, and easy to wear

Overall Fit

Just right

Chest

Just right

Arms & Shoulders

Just right

Waist

Just right

Hips

Just right

Length

Just right

Top Contributor
Size worn:
40
Overall fit:
True to Size
Usually wears: 4
Height: 5' 4"
Bust size: 34B
Body type: Athletic
Weight: 130lbs
Browse Sadye's reviews
October 22nd, 2024
Fun work dress

Wore to work and paired with some booties. Loved it!

Overall Fit

Just right

Top Contributor
Size worn:
36
Overall fit:
True to Size
Usually wears: 0
Height: 5' 4"
Bust size: 32A
Body type: Petite
Weight: 111lbs
Browse Betsy's reviews
October 7th, 2024
Beautiful, professional

Easy to wear - very classy, great for work.

Overall Fit

Just right

Chest

Just right

Arms & Shoulders

Just right

Waist

Just right

Hips

Just right

Length

Just right

Top Contributor
Size worn:
40
Overall fit:
True to Size
Usually wears: 4
Height: 5' 1"
Bust size: 32B
Body type: Petite
Weight: 125lbs
Browse Jennifer's reviews
August 14th, 2024
loved this! Really great fabric and fit

wore this to multiple conferences - nice, structured and professional and still very comfortable!

Overall Fit

Just right

Top Contributor
Size worn:
40
Overall fit:
True to Size
Rented for:
Work
Usually wears: 4
Height: 5' 6"
Bust size: 34B
Body type: Hourglass
Browse Minal's reviews
June 14th, 2025
Perfect work dress

Wore it multiple times! Very comfortable!

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