Update your browser for a better shopping experience!

Get faster load times, stronger security and access to all features.

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 (147)

3.5

50% Recommended this product

Mentions
11 July 2026JenneyEast

Great for all day or night

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Comfy and practical for sleep sport or day to day 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

07 July 2026

Great quality!

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

It is comfy and suits all occasions. Good value for money.

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 July 2026Jules912

Comfortable

Originally posted on marksandspencer.com (UK)

Always buy these for my daughter, she loves them and says they are very comfortable,

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 July 2026Jojojojojo1

OK, not great - need to size up

Originally posted on marksandspencer.com (UK)

No, I don't recommend this

These don’t feel as good as they do usually and they are definitely smaller than usual.

Reviewer Ratings

How do you feel about the size?

Small

Helpful?

Reviewer Ratings

How do you feel about the size?

Small

29 June 202673Anna

Not great

Originally posted on marksandspencer.com (UK)

No, I don't recommend this

They’re cotton and black, so a star for each of those. Other than that, poor quality thin material.

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

29 June 2026Big Bird Warrior

Awful!

Originally posted on marksandspencer.com (UK)

No, I don't recommend this

Thought i'd give these another try but they are just awful. Really thin and no structure to the elasticated part.

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

27 June 2026T Shether

Great quality

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Very comfortable to wear, soft to the touch, good value for money, M&S knickers are the best

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 June 2026Grace380

Okay quality, always good to have cotton.

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Cotton bikini briefs, does what it says on the tin!

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

19 June 2026HeartsandBirdhouses

Trim Has Changed

Originally posted on marksandspencer.com (UK)

No, I don't recommend this

Love M&S cotton pants and have been buying this style forever but was disappointed to find you have changed the style of the trim, the new style is not as nice comfort wise or look.

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 June 2026Bex91

Poor quality

Originally posted on marksandspencer.com (UK)

No, I don't recommend this

They were fine but after one wash seemed to shrink and loose al shape

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

10 June 2026Jtrby1

Quality?

Originally posted on marksandspencer.com (UK)

No, I don't recommend this

Quality not good. Cotton thin. Fit good. Wouldn’t recommend to friend

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

09 June 2026Emma2010

Not as Good as They Used to Be!

Originally posted on marksandspencer.com (UK)

Poor quality cotton compared to what they used to be for sure. Not sure that I would buy again. Comfy to wear in bed or with joggers. I would not wear them as day to day pants due to the VPL

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 June 2026summer1963

Disappointing....

Originally posted on marksandspencer.com (UK)

No, I don't recommend this

Unfortunately these are not the same quality as they used to be. Very thin and flimsy. Have always loved M & S underwear but disappointed with the quality now.

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

02 June 2026007x

Doesn’t fit to size

Originally posted on marksandspencer.com (UK)

Too small for me. I’ve been wearing size 12 for over 10 years and still wear size 12 from other brands but this was too small. Advice is order next size up. And because I had opened and tried one on I couldn’t return so I had to get rid of the whole pack which was a shame.

Reviewer Ratings

How do you feel about the size?

Small

Helpful?

Reviewer Ratings

How do you feel about the size?

Small

31 May 2026GSmithh

Poor quality

Originally posted on marksandspencer.com (UK)

No, I don't recommend this

These were poor quality and the elastic frayed on 2 pairs after the first wash. I have bought these in the past and they were excellent quality but sadly not this batch. Will go elsewhere next time.

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 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

1 of 25