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5pk Pure Cotton Bikini Knickers

Product code: T618800N

About this style

Refresh your everyday collection with this comfortable five-pack set of bikini knickers, made from pure cotton for breathable comfort. This underwear offers the flattering bikini shape with just the right coverage and a brief silhouette that sits smoothly under clothes. Delicate picot trims add a subtle feminine touch to these pantie knickers. M&S Collection: Easy-to-wear wardrobe staples that combine classic and contemporary styles.

Details & care

Style

Low rise

Composition

100% cotton (exclusive of trimmings), Gusset (of underwear) - 100% cotton

Care

Wash at 40°C

Do not bleach

Tumble dry medium temperature

Iron at low temperature

Do not dry clean

M&S

5pk Pure Cotton Bikini Knickers

€10

Colour

Size

Also available in: High Leg Knickers and Thongs
Free standard delivery over €75

Reviews (132)

3.6

52% Recommended this product

Mentions
28 May 2026Apatosaurus

As expected

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

I suspect the fabric composition has altered as they feel different.

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

28 May 2026KK REVIEWS

What have you done to my go-to comfy knickers?!

Originally posted on marksandspencer.com (UK)

No, I don't recommend this

Quality has been significant downgraded since I last bought a multipack of cotton knickers. Fabric feels thinner and the elastic has been reduced to the absolute minimum. Sizing has also changed - if you compare with previous M&S sizes you need to size up which is definitely not good for the ego! I appreciate that these have been cost engineered to hit a price point but I will not be buying these again!

Helpful?

26 May 2026JoGeo

Perfect

Originally posted on marksandspencer.com (UK)

Just what I wanted. Classic Bikini cut. love the 100% cotton

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

25 May 2026bigmarth

Great Quality!

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Great quality as always with M&S, comfortable too.

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

21 May 2026Lidia2

Lovely knickers

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

The knickers are very soft and comfortable. They are real cotton and I love them.

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 May 2026Penguin8988

Comfortable

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Good product. The only negative is the trim doesn't sit flat sometimes so can be seen a bit more than normal under trousers. I sized up and they fit ok. Glad I didnt get my usual size

Reviewer Ratings

How do you feel about the size?

A bit small

Helpful?

Reviewer Ratings

How do you feel about the size?

A bit small

11 May 2026Taboski

Good quality as always

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

I always buy my pants from M&S because the quality is always of a high standard. I would always recommend M&S for quality underwear in a variety of styles.

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

05 May 2026Stella 12345

Gentle feel

Originally posted on marksandspencer.com (UK)

No, I don't recommend this

These were comfortable at first but I felt that if I’d gone for a long walk, they might have slipped down a bit which would have been very uncomfortable. It might be that I should try a different style.

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

03 May 2026Lab333

Not like the quality they used to be

Originally posted on marksandspencer.com (UK)

No, I don't recommend this

Fitting size was good, but the material was poor seemed more like Lycra than cotton

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 May 2026Candicr

Ok

Originally posted on marksandspencer.com (UK)

No, I don't recommend this

I’m not sure if I ordered the wrong ones but these aren’t like my previous ones. It’s a cotton material rather than the soft slinky material. They seemed to shrink a bit on the wash.

Reviewer Ratings

How do you feel about the size?

Small

Helpful?

Reviewer Ratings

How do you feel about the size?

Small

30 April 2026Lewy18

M and S at it's very best

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Always buy my underwear at M and S..Can't be beaten on quality or price..just splendid.

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 April 2026Suet30

Not the same underwear.

Originally posted on marksandspencer.com (UK)

No, I don't recommend this

I gave these 3* as I often buy M&S bikini briefs multi packs, unfortunately this time, they didn’t fit, they kept slipping down, they looked cheaply made and the elastic around the waist was very thin, I am a little disappointed on this occasion, as they are my go to underwear.

Helpful?

24 April 2026Happy281

Basic

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Basic but comfortable knickers. They are true to size

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

24 April 2026Charley2123

Pants

Originally posted on marksandspencer.com (UK)

No, I don't recommend this

They seemed small considering I’d gone up a size which was a shame

Reviewer Ratings

How do you feel about the size?

A bit small

Helpful?

Reviewer Ratings

How do you feel about the size?

A bit small

21 April 2026Onthekeys

Good quality pants that wash well.

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Good value pants with good sizing. They are not skimpy and are comfortable to wear

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 April 2026Sammysuey

Disappointed

Originally posted on marksandspencer.com (UK)

No, I don't recommend this

Used christmas vouchers to purchase some pants, got white and nude colour, have always brought M&S underwear as the fit is always great but this time is different, the elastic is is not worth putting on as pants just keep falling down, complete waste of money for 10 pairs of pants, will go elsewhere now. Gutted

Helpful?

20 April 2026Pefki64

Not as good as they used to be

Originally posted on marksandspencer.com (UK)

No, I don't recommend this

Very disappointed in both the quality and size of these. I have for many years only bought M&S underwear but am now exploring other options. The material appeared to be much thinner than when I've had them previously and the sizing not as generous. I'm a 14 but feel I really needed a 16 in these which I have never bought before and of course could not return the siz 14! I have seen other posts/feedback regarding M&S sizing which seems to be all over the place recently.

Reviewer Ratings

How do you feel about the size?

Small

Helpful?

Reviewer Ratings

How do you feel about the size?

Small

09 April 2026Tbelfast1

Not great

Originally posted on marksandspencer.com (UK)

No, I don't recommend this

Disappointed- not a good fit and the elastic on the legs was harsh. Can’t return now as opened but definitely not impressed

Reviewer Ratings

How do you feel about the size?

Small

Helpful?

Reviewer Ratings

How do you feel about the size?

Small

07 April 2026Capdan

Good quality

Originally posted on marksandspencer.com (UK)

Comfortable, true to size but awful colour selection. Hopefully no one will see!

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

02 April 2026Phillys

Great quality

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

lovely fit perfect just what i was looking for, been looking for cotton underwear

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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