Button Up Collared Sweater

Derek Lam 10 Crosby x RTR

4
(104 Reviews)

Product Details

We are getting peak nautical vibes from this cozy striped cable knit sweater by Derek Lam Collective.

Materials and Measurements

Off-white stripe knit (60% Cotton, 40% Acrylic). Cardigan. Long sleeves. Collar. Front button closure. Imported.

Size and Fit

Sized: XXS-XXL

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Ratings &
Reviews

  (104)  

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: 4
Height: 5' 2"
Bust size: 34B
Body type: Pear
Weight: 128lbs
Browse Kirsty's reviews
March 17th, 2025
Beautiful sweater!!

Fit perfect!! Buttons on it were so cute!

Overall Fit

Just right

Top Contributor
Size worn:
L
Overall fit:
True to Size
Rented for:
Everyday
Usually wears: 2
Height: 5' 2"
Bust size: 34D
Body type: Petite
Weight: 128lbs
Browse Josefa's reviews
June 7th, 2024
Beautiful 🤩

High quality sweater , I was glad to read the reviews about how little it was . LARGE was perfect for me .

Top Contributor
Size worn:
XL
Overall fit:
True to Size
Rented for:
Everyday
Usually wears: 10
Height: 5' 9"
Bust size: 34F
Body type: Hourglass
Weight: 170lbs
Browse Sasha's reviews
April 7th, 2025
Great for work

This fit great and was comfortable the brass buttons make it just dressy enough to wear for work

Overall Fit

Just right

Top Contributor
Size worn:
M
Overall fit:
True to Size
Usually wears: 8
Height: 5' 4"
Bust size: 36B
Body type: Hourglass
Weight: 150lbs
Browse Tara's reviews
April 3rd, 2025
Classy, good materials

Fits nicely for an open cardigan! Materials are tough and hardy, so it is tight if you wear it as a shirt buttoned up. No complaints. But I could see how if you washed it wrong, the fabric would feel dense and a little tight

Overall Fit

Just right

Chest

Just right

Arms & Shoulders

Runs small

Waist

Just right

Length

Just right

Top Contributor
Size worn:
M
Overall fit:
True to Size
Rented for:
Everyday
Usually wears: 6
Height: 5' 6"
Bust size: 34B
Body type: Hourglass
Weight: 144lbs
Browse Carly 's reviews
May 26th, 2025
Love it!

Chic, semi-fitted and cute accent buttons. Stripes match and there is some stretch in the knit fabric.

Top Contributor
Size worn:
M
Overall fit:
True to Size
Rented for:
Everyday
Usually wears: 4
Height: 5' 7"
Bust size: 32DD
Body type: Straight & narrow
Browse Robyn's reviews
April 6th, 2024
It does run small

It is cozy and I really like the buttons. I usually am a small but ordered a medium.

Top Contributor
Size worn:
M
Overall fit:
True to Size
Rented for:
Everyday
Usually wears: 4
Height: 5' 4"
Bust size: 34C
Body type: Athletic
Weight: 135lbs
Browse Sophie's reviews
January 8th, 2024
Size up! Loved

Wore a few times - worked great dressed up with a black mini/tights/loafers, and dressed down with jeans. I took a M (usually a S) and it was perfect. Gave Chanel vibes

Top Contributor
Size worn:
M
Overall fit:
True to Size
Usually wears: 6
Height: 5' 7"
Bust size: 36B
Body type: Straight & narrow
Weight: 140lbs
Browse Morgan's reviews
November 24th, 2023
Chanel vibes

Wore as a top and got lots of compliments! It was pulling a bit at my bust so I would get your true size, esp if you’re planning to wear buttoned. Definitely a heavier weight sweater but super comfy.

Top Contributor
Size worn:
L
Overall fit:
True to Size
Rented for:
Vacation
Usually wears: 8
Height: 5' 10"
Bust size: 34D
Body type: Hourglass
Weight: 155lbs
Browse Cheyanne's reviews
November 9th, 2023
Cute everyday cardigan

Rented this cardigan for vacation in Europe and loved everything about it. It was a great temperature for fall weather, didn’t make me too hot or cold. Definitely runs small - the large was just big enough to not gap in the boob area with a 34D bust. Will be renting again and again!

Top Contributor
Size worn:
L
Overall fit:
Small
Rented for:
Everyday
Usually wears: 8
Height: 5' 2"
Bust size: 36D
Body type: Full Bust
Weight: 170lbs
Browse Maya's reviews
December 17th, 2023
Too short & tight SIZE UP

I’m pretty short and this was super cropped on me - the arms were very tight & not flattering. Overall pretty tight - wouldn’t really recommend.

Top Contributor
Size worn:
M
Overall fit:
True to Size
Usually wears: 6
Height: 5' 6"
Bust size: 36C
Body type: Hourglass
Weight: 150lbs
Browse Erin's reviews
January 27th, 2025
Very Blair Waldorf

It's on the short side but super cute with high waisted jeans. I wore this for a work event and was comfy and felt cute all day. It's also quite thick so good for a chilly day

Overall Fit

Just right

Top Contributor
Size worn:
S
Overall fit:
Small
Usually wears: 2
Height: 5' 7"
Bust size: 32B
Body type: Hourglass
Weight: 115lbs
Browse RTR Member's reviews
December 5th, 2024
Loved!

Super cute and classy! The only thing was it was a bit heavy/ warm

Overall Fit

Runs small

Top Contributor
Size worn:
L
Overall fit:
Small
Rented for:
Work
Usually wears: 4
Height: 6' 1"
Bust size: 34B
Body type: Athletic
Weight: 140lbs
Browse Kristin's reviews
April 17th, 2025
Cute but very small

Very cute and loved the gold buttons but More cropped than on the model and very tight. I sized up base on reviews and large fit like a size small. Sleeve length was tall friendly though.

Top Contributor
Size worn:
L
Overall fit:
Small
Rented for:
Work
Usually wears: 10
Height: 5' 7"
Bust size: 34C
Body type: Athletic
Weight: 155lbs
Browse Theresa's reviews
March 20th, 2025
Perfect for work conference

I wore this to a work conference and it was great. It was comfortable, but not stretchy. I’m usually a medium but I ordered a large. Good thing I did because I don’t think I would have gotten the medium over my hands! Super cute and wore it all day with no issues

Top Contributor
Size worn:
S
Overall fit:
Small
Rented for:
Everyday
Usually wears: 4
Height: 5' 0"
Bust size: 34B
Body type: Hourglass
Weight: 113lbs
Browse Pamela's reviews
January 21st, 2025
More cropped than expected

Tight arms. Good colors.

Top Contributor
Size worn:
M
Overall fit:
Small
Rented for:
Everyday
Usually wears: 2
Height: 5' 4"
Body type: Petite
Browse Jennifer's reviews
June 7th, 2024
Cute not comfy

I rented this in both a S and M and neither felt like they fit right. I am not a chesty girl and the buttons were pulling. But I got lots of compliments!

Top Contributor
Size worn:
M
Overall fit:
True to Size
Rented for:
Everyday
Usually wears: 2
Height: 5' 8"
Bust size: 34B
Body type: Straight & narrow
Weight: 125lbs
Browse Tess's reviews
March 31st, 2024
So cute

Loved the sweater overall, was super cute coloring & detailing. But the sleeves were slightly tight & the last button was very lose.

Top Contributor
Size worn:
L
Overall fit:
Small
Rented for:
Work
Usually wears: 10
Height: 5' 8"
Bust size: 36D
Body type: Full Bust
Weight: 155lbs
Browse Lauren 's reviews
May 5th, 2024
Cropped

I liked this sweater a lot. It was just very short and tight and I have an extremely short torso. It almost felt like someone had put it in the dryer. I would most likely size up.

Top Contributor
Size worn:
M
Overall fit:
Small
Rented for:
Everyday
Usually wears: 4
Height: 5' 8"
Body type: Straight & narrow
Weight: 140lbs
Browse Krista's reviews
March 10th, 2024
Runs Small!

I am typically a small and the medium was too tight on me. Other than that, it’s really great quality and really cute!

Top Contributor
Size worn:
S
Overall fit:
True to Size
Usually wears: 0
Height: 5' 6"
Bust size: 32B
Body type: Athletic
Weight: 115lbs
Browse Carleigh's reviews
May 7th, 2025
So Cute!!!

Wore this multiple times - was the perfect sweater for Easter with some white pants. Overall it was a thicker material but will be renting again!

Overall Fit

Just right

Top Contributor
Size worn:
L
Overall fit:
Small
Usually wears: 10
Height: 5' 8"
Bust size: 36B
Body type: Pear
Weight: 175lbs
Browse Norma's reviews
April 6th, 2025
Beautiful

Runs a tad bit small - size up. The quality of this sweater is stunning. So well tailored

Overall Fit

Runs small

Top Contributor
Size worn:
M
Overall fit:
True to Size
Usually wears: 8
Height: 5' 6"
Body type: Hourglass
Weight: 145lbs
Browse Sharisse's reviews
February 28th, 2025
Very Cute

I got a lot of compliments on this; I loved that I could wear it with jeans a white sneakers or dress it up.

Overall Fit

Just right

Top Contributor
Size worn:
XXL
Overall fit:
Small
Usually wears: 8
Height: 5' 8"
Bust size: 34DD
Body type: Full Bust
Weight: 145lbs
Browse Amber's reviews
February 20th, 2025
Rent 2 sizes up

I usually wear a M-L and rented this in an XXL. I loved it. I likely could have worn an XL too, but I liked the fit of the XXL.

Overall Fit

Runs small

Top Contributor
Size worn:
M
Overall fit:
Small
Usually wears: 8
Height: 5' 5"
Bust size: 34B
Browse Nicole's reviews
February 12th, 2025
loved this sweater

very flattering buttoned or unbuttoned. arms are snug but not uncomfortably so

Overall Fit

Runs small

Arms & Shoulders

Runs small

Top Contributor
Size worn:
XL
Overall fit:
Small
Usually wears: 10
Height: 5' 10"
Weight: 185lbs
Browse Julia's reviews
January 15th, 2025
Great heavy sweater!

Such a cute sweater. Definitely size up! I am a 34DD with athletic arms and the XL was great! Got lots of compliments - very Chanel looking!

Overall Fit

Runs small

Chest

Just right

Arms & Shoulders

Runs small

Waist

Just right

Length

Just right

Top Contributor
Size worn:
S
Overall fit:
Small
Usually wears: 4
Height: 5' 8"
Bust size: 32D
Body type: Athletic
Weight: 125lbs
Browse Tiffany's reviews
November 4th, 2024
So cute

Fit a bit tight around the sleeves, I'm usually an extra small but went with the small. I'm glad I did cause the extra small would've been too small. Super cute and got so many compliments!

Overall Fit

Runs small

Top Contributor
Size worn:
S
Overall fit:
True to Size
Rented for:
Everyday
Usually wears: 2
Height: 5' 3"
Bust size: 30C
Body type: Athletic
Browse Ashlyn's reviews
May 27th, 2025
Cute sweater to quickly elevate an outfit

Wore this mostly at home for remote work but could wear on chilly spring/summer nights and seasonal transitions. Fit true to size

Top Contributor
Size worn:
XL
Overall fit:
True to Size
Rented for:
Work
Usually wears: 12
Height: 5' 4"
Bust size: 36C
Body type: Petite
Weight: 165lbs
Browse Abby's reviews
April 18th, 2025
Polished cardigan

Loved this cardigan. Perfect for work! Button details were lovely, size up if you're on the fence!

Top Contributor
Size worn:
L
Overall fit:
True to Size
Rented for:
Everyday
Usually wears: 4
Height: 5' 1"
Bust size: 32D
Body type: Pear
Weight: 130lbs
Browse Catarina's reviews
January 4th, 2025
Great piece

I rented a size up (already tried in a medium) and liked it better. It buttoned better across the chest and wasn’t as tight. It’s a cute cardigan and easy to wear/pair for an outfit

Top Contributor
Size worn:
M
Overall fit:
Small
Rented for:
Everyday
Usually wears: 2
Height: 5' 2"
Bust size: 32C
Body type: Petite
Weight: 110lbs
Browse Yoojin's reviews
May 20th, 2024
Yeah it's small

I love the collar! Very cute. I listened to the reviews so I sized up so it fit very well. But still, arms are a bit tighter than I'd like on a comfy cardigan, so you could size up even further.

Top Contributor
Size worn:
S
Overall fit:
True to Size
Rented for:
Everyday
Usually wears: 2
Height: 5' 7"
Body type: Pear
Weight: 135lbs
Browse Samantha's reviews
May 2nd, 2024
So cute!

A little tight in the sleeves but super cute

Top Contributor
Size worn:
L
Overall fit:
True to Size
Rented for:
Vacation
Usually wears: 6
Height: 6' 0"
Bust size: 34B
Body type: Straight & narrow
Weight: 155lbs
Browse Haley's reviews
January 18th, 2024
Adorable knitted sweater

I rented for a trip to Paris, and it was perfect. I could have gone even a size up for a looser look and I am between a size 6/8. Really cute and would recommend sizing up at least 1 size.

Top Contributor
Size worn:
M
Overall fit:
True to Size
Rented for:
Everyday
Usually wears: 6
Height: 5' 8"
Bust size: 36D
Body type: Full Bust
Weight: 155lbs
Browse Bailey's reviews
December 4th, 2023
Gorgeous sweater!

I loved this sweater and got so many compliments on it! The material was thick and looked expensive, but wasn't too bulky. I ordered my usual size and it fit me perfectly- fitted but not too tight.

Top Contributor
Size worn:
M
Overall fit:
True to Size
Rented for:
Everyday
Usually wears: 6
Height: 5' 4"
Bust size: 36D
Body type: Hourglass
Weight: 140lbs
Browse Vero 's reviews
November 30th, 2023
Adorable cardigan

It was a little fitted on my chest but I was able to button it up if I wanted to without it looking bad. I wore a tan cami underneath to make it more casual for brunch. It definitely would’ve been dressier if I had buttoned it up. Perfect for fall weather daytime events, super classy.

Top Contributor
Size worn:
XS
Overall fit:
True to Size
Rented for:
Work
Usually wears: 0
Height: 5' 5"
Body type: Petite
Weight: 119lbs
Browse Lindsay's reviews
November 12th, 2023
Cute and comfy!

So comfortable! Wore with a tank under to work and then out by itself with jeans and heels.

Top Contributor
Size worn:
XS
Overall fit:
True to Size
Rented for:
Work
Usually wears: 2
Height: 5' 3"
Bust size: 28C
Body type: Straight & narrow
Weight: 125lbs
Browse Shayla's reviews
October 9th, 2023
preppy

very fitted- great for fall weather layering

Top Contributor
Size worn:
M
Overall fit:
True to Size
Rented for:
Everyday
Usually wears: 6
Height: 5' 8"
Bust size: 32DDD/E
Body type: Hourglass
Weight: 130lbs
Browse Caitlin's reviews
October 9th, 2023
Size Up

I recommend sizing up - this is a cropped sweater. It is beautiful, warm and chic!

Top Contributor
Size worn:
XXL
Overall fit:
Small
Rented for:
Everyday
Usually wears: 12
Height: 5' 8"
Bust size: 34D
Body type: Hourglass
Weight: 170lbs
Browse Meredith's reviews
September 22nd, 2023
Way smaller than expected

The quality is gorgeous. It’s thick and soft, good for fall. But it’s WAY smaller than I expected. I am usually a large and I sized up to a XXL for an oversized look, but the XXL fits me pretty perfectly. It’s cropped too, which I didn’t realize

Top Contributor
Size worn:
S
Overall fit:
Small
Rented for:
Everyday
Usually wears: 2
Height: 5' 6"
Bust size: 32A
Body type: Hourglass
Weight: 120lbs
Browse Morgan's reviews
September 15th, 2023
Order One Size Up

I ordered a size up so it wouldnt be super tight and could still work as a shirt and it was perfect. If you're going to layer it, I would probably order two sizes up.

Top Contributor
Size worn:
L
Overall fit:
Small
Usually wears: 4
Height: 5' 6"
Body type: Athletic
Weight: 138lbs
Browse Tyra's reviews
October 27th, 2024
Tiny

Listen to reviews. Size up x2

Overall Fit

Runs small

See more reviews:
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