Blue Crewneck Cardigan

Derek Lam 10 Crosby x RTR

4
(217 Reviews)

Product Details

Introducing the Derek Lam Collective Button-Up Cardigan in a soft and serene blue. This cardigan features a classic crew neckline and textured knit design, offering a cozy yet stylish look. The button-up front with contrasting buttons adds a subtle touch of detail, while the versatile silhouette makes it perfect for layering or wearing on its own.

Materials and Measurements

Knit (70% Acrylic, 30% Wool). Knits. Crew Neck. Long Sleeve. Front Button Closure. Shoulder to Hemline Length: 22". Length: 18". Imported.

Size and Fit

Sized: XS-XL

The model is wearing a size small and is 5'10".

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Ratings &
Reviews

  (217)  

Includes written reviews and customer fit feedback.

Fit
Runs Small
True to Size
Runs Large

All Photos

Top Contributor
Size worn:
S
Overall fit:
True to Size
Usually wears: 2
Height: 5' 9"
Bust size: 34D
Body type: Athletic
Weight: 133lbs
Browse Brandi's reviews
May 4th, 2025
Perfect weight

Love this color. The weight of this sweater is great for spring and it fits nicely to the body for a flattering look.

Overall Fit

Just right

Top Contributor
Size worn:
XL
Overall fit:
True to Size
Rented for:
Everyday
Usually wears: 14
Height: 5' 4"
Bust size: 38G
Body type: Hourglass
Weight: 200lbs
Browse Lishan's reviews
September 27th, 2024
Versatile, warm, comfortable

Dress it up or dress it down, on a date or lounge around. A lovely closet staple. The color is beautiful. The quality is great. Very warm.

Top Contributor
Size worn:
XL
Overall fit:
True to Size
Usually wears: 12
Height: 5' 4"
Bust size: 38C
Body type: Apple
Weight: 190lbs
Browse Lupe's reviews
March 20th, 2025
Loved the color

Perfect for Spring!

Overall Fit

Just right

Top Contributor
Size worn:
L
Overall fit:
True to Size
Usually wears: 6
Height: 5' 3"
Bust size: 36DDD/E
Body type: Hourglass
Browse Ale's reviews
March 12th, 2025
Loved the color!

Wore this on a work trip! Love the pop of color! And it's warm!

Overall Fit

Just right

Top Contributor
Size worn:
L
Overall fit:
True to Size
Usually wears: 10
Height: 5' 11"
Bust size: 38B
Body type: Athletic
Weight: 156lbs
Browse Kristin's reviews
February 4th, 2025
Loved it!

So cute, fit perfectly.

Overall Fit

Just right

Top Contributor
Size worn:
S
Overall fit:
True to Size
Usually wears: 4
Height: 5' 4"
Body type: Athletic
Weight: 125lbs
Browse Meredith's reviews
October 2nd, 2024
Love it

Overall Fit

Just right

Top Contributor
Size worn:
S
Overall fit:
True to Size
Rented for:
Everyday
Usually wears: 2
Height: 5' 4"
Bust size: 34B
Body type: Athletic
Weight: 115lbs
Browse Julie's reviews
July 11th, 2025
Nice basic.

This cardigan was heavy, so I would definitely use it in the spring time. It was a nice elevated basic. Great shade of blue that brought compliments

Top Contributor
Size worn:
L
Overall fit:
True to Size
Usually wears: 8
Height: 5' 5"
Bust size: 34B
Body type: Straight & narrow
Weight: 150lbs
Browse Catherine's reviews
May 29th, 2025
Beautiful Color, Like the Cut

I sized up because of reviews and should have gotten my normal size. This runs TTS. I really like it even though I sized up. The neckline is really unique being lower for a cardigan and showing off the jewelry! Wearing it open as it is long makes it trendier. Someone wrote cute not cool, I’m finding it and easy to style and a classy staple for sure. The cut is on trend and it is of high quality - like!

Top Contributor
Size worn:
XL
Overall fit:
True to Size
Rented for:
Everyday
Usually wears: 12
Height: 5' 10"
Bust size: 38D
Body type: Hourglass
Weight: 170lbs
Browse Terry's reviews
September 19th, 2024
Periwinkle!

A beautiful, soft cardigan. The detail stitch on the sleeves is everything 😁color is heavenly

Top Contributor
Size worn:
M
Overall fit:
True to Size
Usually wears: 8
Height: 5' 2"
Body type: Hourglass
Weight: 155lbs
Browse Stephanie's reviews
March 3rd, 2025
Grabbed this over and over

I pulled this sweater out pretty regularly and loved having something that would go with a lot of colors and styles. It arrived in great condition, fit true to size

Overall Fit

Just right

Top Contributor
Size worn:
L
Overall fit:
True to Size
Usually wears: 12
Height: 5' 6"
Bust size: 34C
Body type: Pear
Weight: 180lbs
Browse Rosie's reviews
November 18th, 2024
some of my best engagement shots in this sweater

very comfortable; definitely warm enough for a late fall engagement shoot in NYC! recommend!

Overall Fit

Just right

Chest

Just right

Arms & Shoulders

Just right

Waist

Just right

Length

Just right

Top Contributor
Size worn:
S
Overall fit:
True to Size
Usually wears: 2
Height: 5' 6"
Bust size: 32D
Weight: 130lbs
Browse Andrea's reviews
November 3rd, 2024
Great color - cozy & cute

Loved the color! It’s a thick sweater, which usually isn't as stylish/flattering, but this one works. Perfect for days when you don’t need too much warmth but still want something cozy. Not the most flattering when buttoned up on curves, but great layered or left open for a casual look

Overall Fit

Just right

Top Contributor
Size worn:
XS
Overall fit:
True to Size
Rented for:
Everyday
Usually wears: 0
Height: 5' 5"
Bust size: 34C
Body type: Athletic
Weight: 114lbs
Browse Michelle's reviews
January 12th, 2025
Beautiful blue but not my favorite

The color of this sweater is perfect. However, the fit/shape is not. I couldn't pinpoint the reason I didn't like it on me but it was hard to style. Loved the color, though....

Top Contributor
Size worn:
S
Overall fit:
Small
Usually wears: 2
Height: 5' 4"
Bust size: 32DD
Body type: Athletic
Weight: 130lbs
Browse Jordeen's reviews
March 2nd, 2025
Pretty color but not flattering

I have larger shoulders and it was not flattering. I also thought the length made it look a little outdated. Color was nice though

Overall Fit

Runs small

Top Contributor
Size worn:
M
Overall fit:
True to Size
Usually wears: 6
Height: 5' 8"
Bust size: 34B
Body type: Hourglass
Weight: 150lbs
Browse Katherine 's reviews
October 26th, 2024
Cute but not cool

I thought this would be a bit cooler than it was -- I think I was having a hard time with the puckered shoulders, which made it a bit more feminine

Overall Fit

Just right

Top Contributor
Size worn:
M
Overall fit:
Small
Usually wears: 8
Height: 5' 11"
Bust size: 36B
Body type: Athletic
Weight: 160lbs
Browse Darcy's reviews
February 20th, 2025
Runs small!

The sleeves came to like 5 inches above my wrists. Very tight in the shoulders too. Size up!

Top Contributor
Size worn:
XL
Overall fit:
Small
Usually wears: 10
Height: 5' 6"
Bust size: 34D
Body type: Pear
Weight: 180lbs
Browse Emily's reviews
August 14th, 2025
Better for spring/fall

Cute concept and color, i sized up and still felt it ran small. Tight in the arms which might make it hard to layer. Not my perfect cardigan

Overall Fit

Runs small

Top Contributor
Size worn:
XL
Overall fit:
True to Size
Usually wears: 14
Height: 5' 7"
Bust size: 36DDD/E
Body type: Hourglass
Weight: 180lbs
Browse Carin's reviews
May 12th, 2025
Great color

Loved the simplicity of this piece. Looked great dressed up or casual with a white t-shirt and jeans. Good quality item

Overall Fit

Just right

Top Contributor
Size worn:
L
Overall fit:
True to Size
Usually wears: 8
Height: 5' 11"
Bust size: 36C
Body type: Athletic
Weight: 175lbs
Browse Alicia's reviews
May 8th, 2025
Very warm

Not itchy. Super warm

Overall Fit

Just right

Top Contributor
Size worn:
M
Overall fit:
True to Size
Usually wears: 6
Height: 5' 4"
Bust size: 34B
Body type: Pear
Weight: 133lbs
Browse Sarah 's reviews
May 3rd, 2025
Loved the color

Versatile- lots of ways to style

Overall Fit

Just right

Top Contributor
Size worn:
XL
Usually wears: 14
Height: 5' 6"
Bust size: 38DD
Body type: Full Bust
Weight: 170lbs
Browse Lisa's reviews
April 28th, 2025
Great color

XL was loose fitting. Might try L next time.

Chest

Just right

Arms & Shoulders

Just right

Waist

Just right

Length

Just right

Top Contributor
Size worn:
L
Overall fit:
True to Size
Usually wears: 10
Height: 5' 6"
Bust size: 36C
Body type: Athletic
Weight: 165lbs
Browse Megan's reviews
April 8th, 2025
Classic button up sweater.

Fits as expected.

Overall Fit

Just right

Top Contributor
Size worn:
L
Overall fit:
True to Size
Usually wears: 10
Height: 5' 5"
Body type: Athletic
Weight: 173lbs
Browse Natasha's reviews
April 7th, 2025
Perfect spring sweater

I LOVED this thicker, sturdy light blue sweater. It is breathable and looks cute buttoned up or over a tee. I wore it so many times and will definitely rent again.

Overall Fit

Just right

Top Contributor
Size worn:
S
Overall fit:
True to Size
Usually wears: 4
Height: 5' 4"
Weight: 130lbs
Browse Elly's reviews
March 26th, 2025
Preppy Cardigan

This was a cute spring cardigan! Ran a bit longer than I was expecting but still looked great paired with a white tee and light jeans.

Overall Fit

Just right

Chest

Just right

Arms & Shoulders

Just right

Waist

Just right

Length

Too Long

Top Contributor
Size worn:
S
Overall fit:
True to Size
Usually wears: 4
Height: 5' 4"
Bust size: 34B
Body type: Pear
Weight: 130lbs
Browse Kimberly's reviews
March 8th, 2025
Comfy in color and feel

Loved the casualness of this rental. The arms felt a little snug, but nothing uncomfortable. I would rent again!

Overall Fit

Just right

Chest

Just right

Arms & Shoulders

Runs small

Waist

Just right

Length

Just right

Top Contributor
Size worn:
XL
Overall fit:
True to Size
Usually wears: 14
Height: 5' 7"
Bust size: 34DDD/E
Body type: Hourglass
Weight: 225lbs
Browse Kelli's reviews
February 25th, 2025
Pretty color, basic well made cardigan

Fit true to size, comfortable to wear over a shirt. Fairly heavy, which was good for my cold office.

Overall Fit

Just right

Top Contributor
Size worn:
M
Overall fit:
True to Size
Usually wears: 8
Height: 5' 5"
Bust size: 36D
Body type: Athletic
Weight: 150lbs
Browse RTR Member's reviews
February 25th, 2025
Perfect winter sweater and great color!

I left top and bottom buttons unbuttoned and it totally takes the sweater from boring to fun! Keeps you very warm in cold weather .

Overall Fit

Just right

Top Contributor
Size worn:
M
Overall fit:
True to Size
Usually wears: 6
Height: 5' 10"
Bust size: 34B
Weight: 145lbs
Browse Margaret's reviews
February 17th, 2025
Beautiful blue

Gorgeous sweater! A little itchy

Overall Fit

Just right

Top Contributor
Size worn:
S
Overall fit:
True to Size
Usually wears: 4
Height: 5' 10"
Bust size: 34B
Body type: Athletic
Browse Mb's reviews
February 7th, 2025
Loved the color!

So many compliments, soft and comfortable - wore with a tank underneath. Was chilly in San Diego the week I was there on business so was perfect day or night, worn with dress Pants or black jeans and boots

Overall Fit

Just right

Top Contributor
Size worn:
S
Overall fit:
True to Size
Usually wears: 4
Height: 5' 5"
Body type: Hourglass
Browse Katie's reviews
January 4th, 2025
Cute, quality cardigan sweater

Really liked this cardigan. Great staple to have in rotation for winter.

Overall Fit

Just right

Top Contributor
Size worn:
XL
Overall fit:
True to Size
Usually wears: 12
Height: 5' 8"
Bust size: 36DD
Body type: Full Bust
Weight: 172lbs
Browse Valerie's reviews
January 2nd, 2025
Very warm!

Beautiful color, could be softer...but definitely wearable. Super warm though, so layer accordingly.

Overall Fit

Just right

Chest

Just right

Arms & Shoulders

Just right

Waist

Just right

Length

Just right

Top Contributor
Size worn:
S
Overall fit:
True to Size
Usually wears: 4
Height: 5' 4"
Bust size: 32C
Body type: Hourglass
Weight: 130lbs
Browse Kim's reviews
January 1st, 2025
Best cardigan

Best cardigan I've worn in a while, super warm and fits lovely as well as being a nice color

Overall Fit

Just right

Top Contributor
Size worn:
L
Overall fit:
True to Size
Usually wears: 10
Height: 5' 5"
Bust size: 36D
Body type: Pear
Weight: 174lbs
Browse Lori's reviews
December 15th, 2024
Great sweater

Pretty color lots of compliments on this one

Overall Fit

Just right

Top Contributor
Size worn:
XS
Overall fit:
True to Size
Usually wears: 4
Height: 5' 4"
Bust size: 34D
Body type: Hourglass
Weight: 120lbs
Browse Susan's reviews
December 13th, 2024
Cute

Everyday sweater to match everything. Order true to size it should be fitted.

Overall Fit

Just right

Chest

Just right

Arms & Shoulders

Just right

Waist

Just right

Length

Just right

Top Contributor
Size worn:
M
Overall fit:
True to Size
Usually wears: 6
Height: 5' 7"
Bust size: 34DD
Body type: Full Bust
Weight: 130lbs
Browse Amanda's reviews
December 9th, 2024
Great every day

I ended up wearing this sweater multiple times. Wore it to NBA game, running errands and to work. Very versatile.

Overall Fit

Just right

Chest

Just right

Arms & Shoulders

Just right

Waist

Just right

Length

Just right

Top Contributor
Size worn:
M
Overall fit:
True to Size
Usually wears: 6
Height: 5' 8"
Bust size: 38C
Body type: Hourglass
Weight: 147lbs
Browse Laura's reviews
December 5th, 2024
Lovely knit, keeps you cozy but not sweaty

Wore it casually and it works well with light and dark denim! Perfect cut!

Overall Fit

Just right

Chest

Just right

Arms & Shoulders

Just right

Waist

Just right

Length

Just right

Top Contributor
Size worn:
L
Overall fit:
True to Size
Usually wears: 10
Height: 5' 9"
Bust size: 34DDD/E
Body type: Straight & narrow
Weight: 165lbs
Browse Jenn's reviews
November 4th, 2024
Perfect Everyday Cardi

I threw this over literally everything. Comfortable, not itchy and great color

Overall Fit

Just right

Top Contributor
Size worn:
M
Overall fit:
True to Size
Usually wears: 6
Height: 5' 9"
Bust size: 32DD
Body type: Hourglass
Weight: 135lbs
Browse Michelle's reviews
November 3rd, 2024
Cute and cozy

Super cute and very flattering! A little on the thicker side so better for colder weather. Would rent again.

Overall Fit

Just right

Top Contributor
Size worn:
M
Overall fit:
True to Size
Usually wears: 6
Height: 5' 6"
Bust size: 34D
Body type: Hourglass
Weight: 135lbs
Browse Amanda's reviews
November 2nd, 2024
Great color and fit

Color was beautiful and fit curves and could still see my figure despite being a thick sweater

Overall Fit

Just right

Top Contributor
Size worn:
L
Overall fit:
True to Size
Usually wears: 8
Height: 5' 4"
Bust size: 34B
Body type: Pear
Weight: 150lbs
Browse Megan's reviews
October 24th, 2024
Easy cardigan

Easy throw on with jeans. A little warm for fall. Didn't need a tank underneath. Probably should have gone with the medium but large was fine!

Overall Fit

Just right

Chest

Just right

Arms & Shoulders

Just right

Waist

Just right

Length

Just right

See more reviews:
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