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3pk Heavy Absorbency Period Bikini Knickers

Product code: T617322P

About this style

These cotton-rich period bikini knickers from M&S Collection provide heavy absorbency with a triple-layer gusset and leak-proof protection for your flow. The flattering low-rise waist offers a discreet, comfortable brief fit for everyday wear. Anti-odour technology helps maintain freshness throughout your day, while the highly absorbent pantie design and practical pack of three ensures you're always prepared. M&S Collection: Easy-to-wear wardrobe staples that combine classic and contemporary styles.

M&S

3pk Heavy Absorbency Period Bikini Knickers

€17.50

Colour

Size

Free standard delivery over €75

Reviews (57)

4.5

75% Recommended this product

Mentions
15 April 2026Bbn123

Great

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Comfortable, absorbent, well fitting. My go to period pants.

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 April 2026freydegg

Okay- good value for money

Originally posted on marksandspencer.com (UK)

No, I don't recommend this

Okay but the gusset feels quite wide (making it dig into my inner thighs) and the sizing seems a little off. They seem to want to fall down despite an 8 being my right size in all other items.

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

09 April 2026Buggings21

Period knickers

Originally posted on marksandspencer.com (UK)

Good quality nice fit but as I have sensitive skin I found the leg elastic rather irritating

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 March 2026Reviewer3333

Sizing has changed - less comfortable

Originally posted on marksandspencer.com (UK)

No, I don't recommend this

This is the 3rd set of m&s period pants I've bought and unfortunately they seem to have changed the sizing or elastic. Uncomfortable around the legs now Shame because until now I've really rated the period range.

Reviewer Ratings

How do you feel about the size?

Small

Helpful?

Reviewer Ratings

How do you feel about the size?

Small

26 March 2026Redbow17

Lovely quality, poor fit

Originally posted on marksandspencer.com (UK)

No, I don't recommend this

The product itself is made very well. However these came up so small and I was unable to use them. The leg holes are tiny and cut into my legs, I think the cut of the product needs to be improved. I recommend sizing up by 1 or even 2 sizes.

Helpful?

20 March 2026Rae7691

Do the job

Originally posted on marksandspencer.com (UK)

No, I don't recommend this

Not as comfy as previous versions but still do the job.

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

14 March 2026Olie28

Great knickers

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Great fit, comfortable and lovely fabric, you cannot dislike 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

12 March 2026MichelleG28

Great quality

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Great pants and do what they say. Wash well. Highly 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

02 March 2026Diannathegreat

Everyone needs to get a pair

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Really good can’t rate them enough. Works out cheaper in the end to invest in some.

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 February 2026Davo23

Life changer

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Theses really do what it says on the packet. Not to bulky & reasonably 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

20 February 2026Me4322

Found them good so far

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Good so far, will have to see what they are like long term but was happy so far.

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 February 2026Vicsy80s

Really glad I tried them

Originally posted on marksandspencer.com (UK)

First time trying period pants and very impressed with the comfort and absorbency of these

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

14 February 2026CheekyMonkey6

Just what I needed

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Absorbed well. Very comfortable. But needed to size up.

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

13 February 2026Ms CC

Definitely not 'Heavy Absorbency'!

Originally posted on marksandspencer.com (UK)

No, I don't recommend this

Required a couple of pads inside the pants, which defeats the object of the pants. They were fine for the lighter days (not great, but fine), but really no good for the heavy days.

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

12 February 2026Izabela p

Good quality

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

I didn’t follow the reviews and bought my usual size witch is small , I would recommend a bigger size definitely

Reviewer Ratings

How do you feel about the size?

Small

Helpful?

Reviewer Ratings

How do you feel about the size?

Small

09 February 2026Adelaide B

Comfortable and flexible

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Bought to reduce single use plastic, so much more comfortable than pads. Easily washed and fabric soft to touch.

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 January 2026DaleMS

Good fit

Originally posted on marksandspencer.com (UK)

They are a good fit, comfy to wear and they also wash 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

30 January 2026Bb33g

Really good!

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

I really like these but would recommend sizing up in this style

Reviewer Ratings

How do you feel about the size?

Small

Helpful?

Reviewer Ratings

How do you feel about the size?

Small

28 January 2026Katiecardigan

They do the job.

Originally posted on marksandspencer.com (UK)

Pretty as well as functional. Great when exercising. Might need two pairs on if trampolining!

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

22 January 2026Bronj22

Great

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Got these to try to sleep in instead of towels. 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

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