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3pk Heavy Absorbency Period Full Briefs

Product code: T617951P

About this style

These soft, modal-rich menstrual underwear offer all-day comfort and confidence. The full brief style provides good coverage, while our Flexifit™ technology ensures a flexible fit. With heavy absorbency, this period underwear is leak-proof and super absorbent with anti-odour technology and a triple-layer gusset to keep you feeling fresh and dry throughout the day. The low-rise design sits comfortably on the hips for a secure feel. M&S Collection: Easy-to-wear wardrobe staples that combine classic and contemporary styles.

Details & care

Style

Low rise

Active biocidal substance: silver chloride

Added Stretch

Features

Your secret to all-day comfort is our Flexifit™ 360° stretch fabric

Composition

89% modal, 11% elastane (exclusive of trimmings), Gusset layer 1 - 58% polyester, 42% elastomultiester, Gusset layer 2 - 84% polyester, 16% polyamide, Gusset layer 3 - 100% polyester

Care

Wash at 40°C

Do not bleach

Do not tumble dry

Iron at low temperature

Do not dry clean

M&S

3pk Heavy Absorbency Period Full Briefs

€20

Colour

Sale items

Size

Free standard delivery over €75

Reviews (127)

4.5

76% Recommended this product

Mentions
17 August 2026Dotty Hell

Brilliant Product

Originally posted on marksandspencer.com (UK)

Im on the otherside of the menopause but needed these after an operation as my daughter said they were really great. I wish we had these when we were younger. Soft, gentle on your skin and much nicer then any bulky pad. Wash really well - Only negative is I wish I had bought smaller than my usual size as a snug fit is reasurring.

Reviewer Ratings

How do you feel about the size?

Large

Helpful?

Reviewer Ratings

How do you feel about the size?

Large

12 August 2026

Amazing!

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

I love these knickers! I just wish they did them in super heavy. They are so soft and comfy and make a huge difference to wearing pads. These feel more natural to wear. I converted to reusable pads around 8 years ago now but now I’m converted to period pants. They are less faffing around and just feel super 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

03 August 2026SuzB 1

Great quality

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Just as described, true to size and 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

23 July 2026hjm73

Cope with even the heavy first days!

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

First time buying. I have a heavy first couple of days and these briefs worked as designed. Very impressed. Will definitely be buying some more!

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 July 2026KJ 59

Use a incontinence pants

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

I use these as incontinence pants and they are flipping amazing

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

08 July 2026Mini Bronte

Decent but not fantastic

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

They’re a bit less absorbent than I expected (but I do have heavy flow!) and can be uncomfortable to wear unless you’re wearing panties under them. That being said they have a nice feel to 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

29 June 2026Pip256

Saved me so much money xx

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

These pants, have been so comfortable to wear x.

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 June 2026Suzy2025

Perfect for my needs

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Perfect for my needs and very comfortable and have washed 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

26 June 2026Nanny B1

Come out very big

Originally posted on marksandspencer.com (UK)

No, I don't recommend this

I purchased a size smaller than I usually wear. They were very big and kept pulling my trousers down. I ordered another set but again went down a size and again they are far too big. They are also nylon and are very hot

Reviewer Ratings

How do you feel about the size?

Very large

Helpful?

Reviewer Ratings

How do you feel about the size?

Very large

26 June 2026averageheadsizedlady

Great fit

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Bette than the previous ones I owned. Comfortable. Great fabric. Nice cut. Good for.

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 2026WLcustomer

Also good for exercising

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Bought for exercising in the sun on holiday. Did the job of keeping me not as sweaty as normal 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

12 June 2026Tess8888

Nice feel

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Nice feel but came up a little big. Seem to work well.

Helpful?

12 June 2026Angela85

Comfortable

Yes, I recommend this

Really comfortable to wear, I’d never go back to pads

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

Helpful?

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

09 June 2026Jeanette1256

Period knickers

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Really good knickers does exactly what it says fit is perfect

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 June 2026Grannywebster

You can wear these with confidence

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

I love these pants. They are so soft and comfortable to wear. I wear them as an older person with bladder issues.

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 May 2026Tash2001

Great quality! Very comfy

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

So good! Saves so much hassle of using other products and saves money in the long run. Easy to rinse out then wash and really comfy!

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 May 2026Happy fleet21

Alternative use

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

My relative has bladder issues. She feels really secure wearing these with incontinence pads because of the thickness and absorbency they have. Better than incontinence under wear which is plastic and 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

24 May 2026wannabeyoung

Excellent product

Originally posted on marksandspencer.com (UK)

Comfortable and reliable. Life changing product not only for periods but for incontinence too. Please make ones in white, too and add femininity to enhance.

Helpful?

23 May 2026tiger girl

Great Quality & Value

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

These pants are ideal for people with urinary problems doing away for the need of pads & panty liners. The material & look is far lighter & nicer than previously. Would be even better if the gusset matched the colour of the pants as with the black pairs

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 May 2026SB2026

Happy with purchase. Would buy again.

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Good quality & comfortable. Will buy again. On larger side .

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

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