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Cotton Rib Non Wired Plunge Bra A-E

Product code: T818922N

About this style

Cotton rib and form fitting jersey combine on this Juni bra for an understated, off duty feel. Lace trim runs along the neckline for a soft detail. This B by Boutique style is non wired and padded for a natural, comfortable shape. B by Boutique: Playful lingerie designed for good times.

M&S

Cotton Rib Non Wired Plunge Bra A-E

€22

Colour

Band Size

Cup Size

Also available in: Push-Up Plunge Bra A-E
Free standard delivery over €75, otherwise €4.50

Reviews (22)

4.6

91% Recommended this product

Mentions
25 October 2026Frazersmum

Comfy

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Wanted the white but out of stock. Chose grey with plan to keep eye on white one if it fitted. Soft, flexible just enough support, can’t tell I’m wearing it Nice thick band at back Found straps abit hard to adjust but have arthritis in fingers. Yet to wash it so can’t comment on wasability

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

23 October 2026Jeanette R

Best bra ever

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Best bra i have ever had... Never been able to keep straps up on my shoulders because they slope, strapless bras are good but cause discomfort due to the under wiring. This bra with its little clip on the back keeps straps up and no discomfort

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

05 October 2026Lamont78

Really comfy

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Great bra for relaxing in, I wear it around the house. If you don’t mind a relaxed fit it would be ok for outside too

Helpful?

19 September 2026Stylish clothes horse

Comfortable bra

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Wanted a non-underwired bra for a change. Really comfortable fit and due to the material, much cooler the my normal bras. Gives some support

Reviewer Ratings

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

06 September 2026waldewilf

Most comfortable bra ever!

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

A really comfortable bra for everyday. No scratchy details. I bought 3!

Reviewer Ratings

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

01 September 2026Alison Tipperary 22

Excellent comfortable cotton bra

Yes, I recommend this

Lovely comfortable cotton bra. Bought for my teen daughter, loved it so much, she asked me for another.

Reviewer Ratings

Quality

Excellent

Helpful?

Reviewer Ratings

Quality

Excellent

29 August 2026ElisaW

Very comfortable

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

I always buy underwired bras, but am starting to find them uncomfortable. I was so happy with the bra in grey, that I bought it in white as soon as there was availability online. It’s both comfortable and very supportive. Would definitely recommend.

Reviewer Ratings

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

26 August 2026N FAli

padded bra . did not like the material

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

padding was not of good quality. not suitable for me personally .

Reviewer Ratings

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

23 August 2026Coremarkscustomer

Comfy but only partly cotton

Originally posted on marksandspencer.com (UK)

I was looking for a cotton bra and didn't notice that, although this is advertised as cotton rib and looks like cotton on the outside, the inside is lined with man-made fabrics. Only 65% cotton.

Helpful?

03 August 2026Krissyzzz

Comfortable and pretty

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Material is very comfortable in the hot weather and looks pretty.

Reviewer Ratings

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

01 August 2026dedasadodo

Good shape

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

The bra gives a good shape especially if your boobs have lost their youthful firmness. The actual cups are quite heavy though so you need to get the straps right or the whole bra sort of sags downwards.

Reviewer Ratings

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

30 July 2026RaeRae007

Padded Bra

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Cotton Bra with no underwiring which I always find uncomfortable.

Reviewer Ratings

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

27 July 2026Sarah28

Beautiful shape

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Love the cotton fabric. Breathable, beautifully designed and gives a lovely natural shape under your clothes despite being unwired. Very comfortable to wear. Will buy again. Nude colours next please.

Reviewer Ratings

How do you feel about the size?

A bit large

Helpful?

Reviewer Ratings

How do you feel about the size?

A bit large

23 July 2026jenda

Very comfortable

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Bought on impulse but very pleased as comfortable and a good fit. Like the band under the cups and the cotton content- ideal in the hot weather. Have since bought again in white and wish it was available in black or other colours.

Reviewer Ratings

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

20 July 2026teddyw

Excellent quality

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Lovely well-fitting bra in a very welcome cool cotton finish. Very easy to wear during the current heat wave, and it looks pretty!

Reviewer Ratings

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

13 July 2026Suprana8

Too small for stated size.

Originally posted on marksandspencer.com (UK)

No, I don't recommend this

I measured under my bust several times before ordering, each time the tape measure read 36 inches. However, this "36" D bra is so tight around the ribs I can't do it up. The D part of it is fine. I'm waiting on a better bra extender before wearing this, though I was hoping to avoid this kind of thing. Not very pleased about this.

Reviewer Ratings

How do you feel about the size?

Small

Helpful?

Reviewer Ratings

How do you feel about the size?

Small

05 July 2026Donzbell

Nice bra

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Really lovely, great sizing, supportive & comfy. Would recommend

Reviewer Ratings

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

01 July 2026Idonotwishtobeidentified

Comfortable , cotton and good value

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

It is so nice to find a bra that is not wired and is sold singularly. This bra is not only comfortable but it is made of cotton. So few are. I wish Marks & Spencer would sell more plunge bras like this.

Reviewer Ratings

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

17 June 2026Mini Minoo

Beautiful Cotton Bra

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Beautiful shape under tight-fitting tops, fresh cotton material, super comfortable and gorgeous with matching briefs.

Reviewer Ratings

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

11 June 2026LinnetB

Convert to this comfortable cotton bra.

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

I am a complete convert. Usually wear plunge wired styles which tend to ride up your bust. This cotton bra offers a wide supportive underband. The cups shape and support.

Reviewer Ratings

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

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