Button down knit dress

[NutellaWithEverything]

Looking for a button down knit dress in black to wear with knee high boots. I would consider dark navy or green. I'd like to be able to dress it up or down. Most importantly, I'd like it to be fitted but in a way that's kind to a middle age bumpy body, so probably a thick quality fabric.
I'd like it to be v neck and no shorter than knee lenghth. I am only 5.1" so sometimes I can get away with mini. I am a size 10, although for this type of dress I might have to go up a size to accommodate my derriere. Budget around £100. Please don't suggest vinted.
(for illustration purposes, something like this, but shorter, and way better quality: https://www.newlook.com/uk/womens/clothing/dresses/burgundy-ribbed-knit-button-front-midi-dress/p/861409767)

Yumi
Might be too long, but I always find them really short (I am 5'8" though)

This one? https://www.riverisland.com/p/black-chain-detail-bodycon-mini-dress-753624

Thanks @IbizaToTheNorfolkBroads. I really don't want the fit&flare style. I'd like it to be fitted throughout.

Just as a warning, these quite often stretch/ gape across the buttons and look awful, however maybe an expensive one (or nonfunctional buttons?) would be okay?

Thanks @GettingStuffed. I suspect that one might be too short even for me, once the dress has stretched to accommodate my derriere. I am also not super keen on the flippy skirt detail.
However, this has taken me to see this other dress which is much closer to what I'm after, except I suspect it might still be too short.
https://www.riverisland.com/p/black-knitted-zip-bodycon-mini-dress-901059

@1035tg, agreed, that's why I'd like a decent quality one with substantial weight to it.

(One of the reviews say the buttons on the new look one are just for decoration)

https://www.phase-eight.com/product/kinza-black-knitted-mini-dress-221889050.html#cgid=knitted&is=true&sz=60&start=0&isSecondPage=false&pid=221889050&pos=20

Doesn’t look too short. But it is black.

https://www.phase-eight.com/product/kinza-black-knitted-mini-dress-221889050.html#cgid=knitted&is=true&sz=60&start=0&isSecondPage=false&pid=221889050&pos=20

This green one from yumi?

https://www.yumi.co.uk/mela-london-mela-green-knitted-fitted-midi-dress-with-buttons-p23650

i’ve never brought from there so would love people to say if it is a good shop. The dresses look nice.

www.asos.com/au/asos-design/asos-design-knitted-rib-midi-dress-with-button-through-in-navy/prd/203586946

This is quite nice, could wear with knee high boots and a trench.

I am your height and size 6-8. I am not sure it is a short and fitted knit dress is a good look for a middle-aged lumpy body (mine included).

I'll shut up now.

@blueshoes I don't fully disagree but I don't want a short dress, I want it on/below the knee. I want it figure fitting but in a good quality fabric that doesn't cling on and accentuate lumps, and in a dark shade. I think with the right dress I will look bloody gorgeous.

I admire your confidence.

For quality stuff, I normally go to The Fold London but could not find any knit dresses that fit your bill. The button down criteria is quite limiting, I have to say.

Phase Eight usually has a good selection and reasonable quality:

How about this:

https://www.phase-eight.com/product/kinza-black-knitted-mini-dress-221889050.html

or if you will consider a zip

https://www.phase-eight.com/product/milla-multiway-zip-ribbed-tunic-dress-220686050.html

More knitted dresses:

https://www.phase-eight.com/clothing/dresses/knitted/?imageType=model&is=true&sz=60&start=0&isSecondPage=false

Oh, I see many posters have already linked to the Phase Eight black dress.

Thanks!
I actually love the one with the zip, and it can double up as a cardigan!!

How about this - reduced to £100? I have it in navy and am bigger than you (size 14) and feel amazing in it with shapewear underneath and knee high tan boots!

https://www.houseoffraser.co.uk/brand/lauren-by-ralph-lauren/belted-dress-580981#colcode=58098118

Ignore the review, they are talking about the coral version but there is nothing see through with the navy and the material is lovely.

Edit: I know it isn’t technically button down or a neck (which I normally prefer myself) but it really is super flattering!

This one is velvet rather than knitted but it might fit your brief:
https://www.sosandar.com/midnight-blue-luxe-velvet-pencil-popper-front-dress

I don't normally like Sosander much but quite like the look of this.

Sosandar has some great dresses.

This any good?

www.ebay.co.uk/itm/314887182920?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=8flpcdlhr7q&sssrc=4429486&ssuid=wRcqXNKSS2e&var=613395350384&widget_ver=artemis&media=COPY

Or this?

www.very.co.uk/lucy-mecklenburgh-button-through-knitted-midi-dress-blacknbsp/1600895421.prd#sku=sku26888180

Button down is the American term, button through is the British wording. Button down might have made it into use here, but if not, you might find more options by using button through. Add knee length to the search too.