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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.

M&S

5pk Pure Cotton Bikini Knickers

€10

Colour

Size

Matching items: Vest
Also available in: Thongs and High Leg Knickers
Free standard delivery over €75, otherwise €4.50

Reviews (189)

3.5

49% Recommended this product

Mentions
11 October 2026Fluty

Great quality

Originally posted on marksandspencer.com (UK)

These pants are fine but just a little too low for me as my body has changed since turning 70. I’m sure they would be absolutely fine for a younger person though. They’re pretty & comfortable otherwise.

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 October 2026Kllobar

Feel cheap, small and flimsy

Originally posted on marksandspencer.com (UK)

No, I don't recommend this

Terrible. Poor quality fabric and elastic. Too small

Reviewer Ratings

How do you feel about the size?

Small

Helpful?

Reviewer Ratings

How do you feel about the size?

Small

07 October 2026LeylaSanai

Essential smalls

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

No one else seems to make 100% cotton knickers. I don’t want 5% synthetics in my knickers. I don’t even want 0.5% synthetics. I don’t care if they don’t cling or look sleek.

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 October 2026Mad haystacks

Exactly what I was looking fot

Originally posted on marksandspencer.com (UK)

Great value basic product. I was surprised not to be able to buy it in store, but the order and collect process worked perfectly. That’s really useful as we don’t have a local M&S clothing store

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

18 September 2026duncsribs

Cotton knickers

Originally posted on marksandspencer.com (UK)

No, I don't recommend this

Having bought my knickers from M&S for all of my adult life, I find these disappointing. They are very thin, you can see your hand through them! The quality is much lower than I expected from M&S.

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 September 2026SGra

Comfortable, good quality

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

No flimsy knickers here! Well made, comfortable and like that they do them in a nude colour

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

17 September 2026earthmother83

Good Quality

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Great delivery, good quality material & fits well!

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

12 September 2026ilovehandbags54

Quality knickers

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

I always buy these knickers ,very comfortable to wear and been buying these for over 20 years

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 September 20260510

Great quality

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Lovely briefs full cotton, for my skin brill. Wore them, comfortable and so on, only problem after 2-3 washes the briefs have grown. I am spending every afternoon taking them in, it’s a slow job as they need to be comfortable and I do not own a sewing machine anymore. The quality is there they just fall down

Reviewer Ratings

How do you feel about the size?

Very large

Helpful?

Reviewer Ratings

How do you feel about the size?

Very large

10 September 2026GeneveveH

Disappointed

Originally posted on marksandspencer.com (UK)

No, I don't recommend this

I’ve been buying M&S bikini knickers for many years and they have always been a great fit and excellent quality and value. I’m not sure what’s happened to the design in these as they are not the same as my earlier purchases. Very disappointed, why have they changed? If it’s not broken don’t try to fix it!!

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

06 September 2026Kaz750

Cheap fabric, poor fit

Originally posted on marksandspencer.com (UK)

No, I don't recommend this

Have had M&S pants for years. They are now thinner, cheap fabric and a lot smaller. Obviously have changed suppliers and not for then better. The fabric used to be a lot thicker and softer. Will start looking elsewhere from now on. These don’t fit like they used to and feel cheap.

Reviewer Ratings

How do you feel about the size?

Small

Helpful?

Reviewer Ratings

How do you feel about the size?

Small

02 September 2026petite63

Just what I expected!

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Straightforward, comfortable cotton knickers. Not too high on the hips but not skimpy either.

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 September 2026Gee f

Great pants

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Great pants! Good quality fabrics and a good fit for me.

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

31 August 2026Mli

Bit thin

Originally posted on marksandspencer.com (UK)

No, I don't recommend this

A bit thin, but good value. I’d say the gusset is a bit narrow, 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

27 August 2026Sally EH

Pants okay

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Cotton pants, which are hard to find nowadays. Would like more colours. Not the best quality cotton, but better than nothing!! Much better quality years ago, with patterns as well.

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 August 2026Paula479

Bring back the old knickers

Originally posted on marksandspencer.com (UK)

Haven't worn then yet but hoping they'll last a little longer than the last few packs I've bought. M&S knickers used to last for ever, it seemed. Lately, seams open up and edging lace frays after several washes. I'd pay more for quality clothes.

Helpful?

25 August 2026chancelhouse

Very disappointed

Originally posted on marksandspencer.com (UK)

These knickers are not the same size as the ones I was replacing and they are totally useless for me

Helpful?

20 August 2026becks221

Not the usual standard from M&S

Originally posted on marksandspencer.com (UK)

No, I don't recommend this

The elastic in these pants has already gone. I am going to have to throw them in the bin!

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

20 August 2026Hedgirl

Feel good

Originally posted on marksandspencer.com (UK)

These feel nicer and fit better than the Supima version. Very happy with 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

20 August 2026Disappointed100percent

Buyer beware - reduced cut= period pads won’t fit

Originally posted on marksandspencer.com (UK)

No, I don't recommend this

These are a buyer beware, with such a decrease in quality from previous years that I am switching to Sainsbury’s or anywhere else I can find 100% cotton. The waistband sits tight with the changed elastic to plain, the crotch and gusset are so thin new that a regular pants liner / or pad has to be very carefully placed because the pants liner is wider than the material for the underwear itself. M&S are cutting fabric quality and the actual cut of these pants to as fine a line as they can. ‘marginal gains’ per meter fabric used to increases profit but it makes for really rubbish unusable underwear. I would rather pay more for the style to return to what it was.

Reviewer Ratings

How do you feel about the size?

Small

Helpful?

Reviewer Ratings

How do you feel about the size?

Small

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