Rent the Runway

Z Spoke Zac Posen

On Edge Dress

$49 to buy
$560 Retail

Price varies based on availability. Select your date to see price.

Stylist Notes

This sexy Z Spoke by Zac Posen sheath features a subtle keyhole for added glam! Strut your stuff in this dress at your next cocktail party and you'll be sure to win complements all night long. Go with the Kate Spade Putting on the Ritz Bangle and a gold bag to add a bit of bling.

Size & Fit

This dress runs true to size. We recommend going one size up for back-up size (see following fit notes for exceptions). Sized 0-10.

BUST: Great for any cup size - fitted at bust so fuller busted women should size up; also, can not be worn with a strapless bra due to exposed back and keyhole
WAIST: Fitted - fitted throughout midsection; consider wearing with SPANX to cinch in abdomen
HIPS: Fitted - curvier women should consider sizing up for full hips; slit in back comes to mid-thigh
LENGTH: Knee length - (on a 5'5" model)

UNDERGARMENTS: Should be worn with a NuBra due to exposed back and keyhole
FABRIC: Fabric has no stretch
GREAT FOR: Apple, Full Bust, Hourglass, Pear, Petite, Tall, Straight & Narrow body types
(Model's height is 5'10".)

Size & Fit Notes

This dress runs true to size. We recommend going one size up for back-up size (see following fit notes for exceptions). Sized 0-10.

BUST: Great for any cup size - fitted at bust so fuller busted women should size up; also, can not be worn with a strapless bra due to exposed back and keyhole
WAIST: Fitted - fitted throughout midsection; consider wearing with SPANX to cinch in abdomen
HIPS: Fitted - curvier women should consider sizing up for full hips; slit in back comes to mid-thigh
LENGTH: Knee length - (on a 5'5" model)

UNDERGARMENTS: Should be worn with a NuBra due to exposed back and keyhole
FABRIC: Fabric has no stretch
GREAT FOR: Apple, Full Bust, Hourglass, Pear, Petite, Tall, Straight & Narrow body types
(Model's height is 5'10".)

Size Chart

Size Chart

Product Details

Blue textured jacquard(49% cotton; 42% acrylic; 9% polyester; lining: 100% polyester). V neckline with keyhole. Hook-and-eye closure. Hidden back zip. 37'' from shoulder to hem. Imported.

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21 reviews

Fit
Small 9
True to Size 10
Large 2
Photos 5
NJL
Top Contributor
Usually wears: 0
Height: 5' 0"
Age: 32
Bust size: 32B
Body type: Petite
Weight: 93 lbs
Dec 23, 2011

Very cute - but too big

Size worn: None
Overall fit: Large
Rented for: Party
I didn't wear this dress because it was too big and long. It was wide in the hips, just as an FYI. But the fabric looked and felt amazing!
JH
Top Contributor
Usually wears: 4
Height: 5' 10"
Age: 28
Bust size: 34B
Body type: Athletic
Weight: 135 lbs
Jan 6, 2012

perfect nye dress!

Size worn: 4
Overall fit: True to Size
Rented for: Party
thought the dress was relatively true to fit- was perfect in the bust and hips- the waist did have some extra fabric, but i still loved the dress! The length worked well on me, but the back slit was a concern as it is a bit high. Ended up not being an issue but something to look out for. The look of the fabric is beautiful, especially in pictures! And the material is very comfortable. Would highly recommend this dress!
S
Top Contributor
Usually wears: 6
Height: 5' 9"
Age: 31
Bust size: 34A
Body type: Pear
Weight: 135 lbs
Jan 10, 2012

Gorgeous fabric but fit was of

Size worn: None
Overall fit: True to Size
Rented for: Party
Great fabric and love the color. Great color for blondes. Was more conservative than expected - it's on the longer side and the center cut out was small (I could have worn a bra under it). I was really excited to wear this but unfortunately it didn't quite fit me...I rented a 6 and an 8...the 6 was too small in the hips for me and the 8 fit but had kind of weird gapping around the hips. Would be killer if you are slim and can slip into a small size.
Julie
Usually wears: 6
Height: 5' 8"
Age: 36
Bust size: 34C
Body type: Hourglass
Weight: 135 lbs
Feb 20, 2012

Sexy yet understated

Size worn: 6
Overall fit: True to Size
Rented for: Formal Affair
I love this dress! It hugged my curves in all the right places yet was incredibly comfortable. The fabric and cut make this a unique piece. You'll stand out without looking contrived.
Tara
Top Contributor
Usually wears: 2
Height: 5' 3"
Age: 26
Bust size: 34C
Body type: Hourglass
Weight: 125 lbs
Feb 28, 2012

True to size small in hips

Size worn: 4
Overall fit: True to Size
Rented for: Other
Beautiful fabric but for an hourglass figure is a little small in the hip and butt area
Andrea
Usually wears: 0
Height: 5' 1"
Age: 29
Bust size: 34C
Body type: Petite
Weight: 103 lbs
May 14, 2012

Pretty fabric, but runs big!

Size worn: None
Overall fit: Large
Rented for: Wedding
I rented this dress for a wedding and it was not what I was expecting at all. The dress was really big overall (especially on the hips) and very long. The fabric is really pretty but thin. The whole in the middle is very small as well, so it is different from what we see in the picture. Ended up returning it and renting another one!
Dianne
Top Contributor
Usually wears: 4
Height: 5' 4"
Age: 55
Bust size: 34A
Body type: Athletic
Weight: 118 lbs
May 16, 2012

Received many compliments that color was very flattering on me.

Size worn: 4
Overall fit: True to Size
Rented for: Wedding
Was not as dressy as I had thought in looked in the photo. Still very pretty and I ended up wearing it to the church ceremony vs. evening wedding reception. Keyhole is not as pronounced as it appears on model.
Anna
Usually wears: 6
Height: 5' 7"
Age: 29
Bust size: 32C
Body type: Hourglass
Weight: 130 lbs
Nov 14, 2012

I wore this to a charity/work event and it was the overall perfect style for the event.

Size worn: 8
Overall fit: Small
Rented for: Party
I have a hard time with dresses because I am very long wasted, have a small waist. I ordered a 6 and 8 but ended up wearing the 8 because the hip size was a little tight on the 6. (usually wear a size 27-28 jean) As said in previous comments: The opening at the center of the dress is a lot smaller than it looks in the photo. The dress also hit higher on my neckline than it does on the model.
Sare Bear
Top Contributor
Usually wears: 2
Height: 5' 11"
Age: 21
Bust size: 34A
Body type: Straight & narrow
Weight: 138 lbs
Nov 26, 2012

My senior prom. Actually was my back-up as my full length gown was too short. Looked great though!

Size worn: 2
Overall fit: Small
Rented for: Formal Affair
Great dress, looks gorgeous and just like the picture, though beware if you have hips or a butt! The waist of the 2 was comfortable, but the hips were pretty darn tight on me; my measurements: bust - 34", waist - 26", hips - 38". Back doesn't allow for a bra, but I was fine without one.
katewustl
Top Contributor
Usually wears: 4
Height: 5' 7"
Age: 28
Bust size: 32D+
Body type: Full Bust
Weight: 135 lbs
Dec 17, 2012

loved the fabric, but fit was strange

Size worn: None
Overall fit: Small
Rented for: Party
I rented my usual size 4 and a back up 6. The 4 fit through the waist & hip but was extremely tight in the thigh and bust. The 6 fit better but was still tight in these areas with extra fabric at the hips. the keyhole, like other reviewers have said, is smaller in person than it appears on the model
Sydney
Top Contributor
Usually wears: 2
Height: 5' 8"
Age: 26
Bust size: 34A
Body type: Athletic
Weight: 130 lbs
Jan 2, 2013

Beatiful dress, fit was just a little bit off...

Size worn: None
Overall fit: Small
Rented for: Wedding
I really liked this dress in person, but as other reviews have pointed out the bottom of the dress was pretty tight! I felt like I would rip the dress if I were to sit down too fast. The back slit also went up very high. I rented a size 2. I am pretty straight & narrow when it comes to my hips, so I was surprised it was that tight on me.
Maritza
Top Contributor
Usually wears: 2
Height: 5' 4"
Age: 30
Bust size: 32B
Body type: Hourglass
Weight: 125 lbs
Jan 15, 2013

not as formal as it looks in the photo

Size worn: 4
Overall fit: True to Size
Rented for: Formal Affair
I rented it as a back up dress for new years semi formal event and although it fit it was not as nice as I had expected. It fit great okay for a person that has curves however but not ideal for someone who has curves since it was especially tight on the hip thigh region and also not good for occassion where you want to dance since it has no stretch to it. The dress was also more conservative then expected. If I were to wear it for an occasion I would have picked a really nice dinner or a day wedding.
austingirl25
Usually wears: 4
Height: 5' 8"
Age: 28
Bust size: 32B
Body type: Pear
Weight: 140 lbs
Feb 5, 2013

Did not fit

Size worn: None
Overall fit: Small
Rented for: Formal Affair
Order sized 2 & 4 and neither fit. There is no stretch in the fabric and the waistline is not flattering.
Jacquie
Usually wears: 2
Height: 5' 8"
Age: 27
Bust size: 34C
Body type: Hourglass
Weight: 125 lbs
Mar 5, 2013

I wore it for a formal, got lots of compliments.

Size worn: 2
Overall fit: True to Size
Rented for: Formal Affair
Dress fit true to size, was a little snug against the rear but overall very nice fitting. Goes well with the basic black shoe which made it an easy pick.
Robin
Top Contributor
Usually wears: 4
Height: 5' 5"
Age: 48
Bust size: 34B
Body type: Athletic
Weight: 120 lbs
Mar 29, 2013

Classic!

Size worn: 4
Overall fit: True to Size
Rented for: Other
I agree with the other reviews that the fit is slightly off on this. It was very tight across the bottom and there was a little gap at the waist. I think that it is a tough fit because there is no give at all in the fabric. That being said, it looked fabulous on even though I could barely sit down in it. It is conservative enough that I was able to wear it to a charity luncheon. Photographs really don't do the fabric justice.
Rachel
Usually wears: 4
Height: 5' 7"
Age: 22
Bust size: 34A
Body type: Pear
Weight: 125 lbs
May 9, 2013

Too conservative!

Size worn: None
Overall fit: Small
Rented for: Formal Affair
Unfortunately, I had to return this dress. It was very long on me and it was much more conservative and boring than I had hoped. I loved the fabric and the pattern, but it is difficult to see it in pictures. I also thought the key hole would be bigger.I rented it for a sorority formal, but it was too casual and not very sexy.
MF
Top Contributor
Usually wears: 14
Height: 5' 8"
Age: 27
Bust size: 38C
Body type: Full Bust
Oct 8, 2013

Disappointed

Size worn: None
Overall fit: Small
Rented for: Date
I was hoping to wear this to an anniversary dinner. In the picture, it looks like it's just the right mix of conservative and scandelous. I had rented a Z Spoke dress before so I was confident in the size I ordered. There is absolutely no stretch in this dress in addition to (in my opinion) the sizing running small. I suggest renting, a size up AND the size above that!
Melanie
Top Contributor
Usually wears: 4
Height: 5' 5"
Age: 36
Bust size: 34A
Body type: Pear
Weight: 135 lbs
Dec 19, 2013

I was unable to wear this dress because it did not fit well.

Size worn: None
Overall fit: Small
Rented for: Wedding
This dress could have been amazing, but it was too tight in the hips. I am pear shaped, so small on top and bigger in the bottom. I tried both the size 4 (my typical size) and the size 6. The 4 was impossible. The fit in the hips was way too small. It fit in the bust perfectly. The 6 fit better but it was almost baggy in the tummy area and still a bit snug in the hips. I had a backup dress that I wore instead.
Conner
Top Contributor
Usually wears: 4
Height: 6' 0"
Age: 25
Body type: Apple
Feb 26, 2014

Dv

Size worn: NONE
Overall fit: True to Size
Rented for: Party
Drhf
JM
Top Contributor
Usually wears: 6
Height: 5' 6"
Age: 37
Bust size: 34C
Body type: Hourglass
Jul 14, 2014

I didn't end up wearing this dress.

Size worn: None
Overall fit: True to Size
Rented for: Party
I rented the size 6 & 8. The style would be flattering, but this is not meant for girls with curves. I normally wear a 6 but it wouldn't zip. The size 8 zipped and fit nicely up top (although the cutout is smaller than appears on the model - about the size of a quarter) but the 8 was way too tight around the hips. There is no give/stretch in the material.
Susan
Top Contributor
Usually wears: 12
Height: 5' 9"
Age: 27
Bust size: 34D+
Body type: Hourglass
Jul 21, 2014

Dress runs very tight through hips

Size worn: 10
Overall fit: Small
Rented for: Other
The material was very nice and I love the design of this dress. Unfortunately, it was unwearable for me. The top and waist fit, but it was impossible to get the skirt over my hips. It is very slip and with no stretch (or very little if there is any). Probably a great dress for smaller hips or in a bigger size. I rented a 10. I normally wear a 10 or a 12, and I have never had trouble with the hips being too small in a dress -- usually if a dress is too small it is in the bust. In short, great dress -- just be aware.
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