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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.

M&S

3pk Heavy Absorbency Period Full Briefs

€20

Colour

Size

Free standard delivery over €75, otherwise €4.50

Reviews (134)

4.4

75% Recommended this product

Mentions
20 September 2026PG19

Great quality

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Lovely quality knickers. A little on the big size but really comfortable to wear. Would definitely recommend.

Reviewer Ratings

How do you feel about the size?

Large

Helpful?

Reviewer Ratings

How do you feel about the size?

Large

14 September 2026Olivia1987

Recommend

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Really great product. Really absorbent, no damp sensation.

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 September 2026Leilalik

Do not buy these

Originally posted on marksandspencer.com (UK)

No, I don't recommend this

Do not buy! They won’t last! Appalling quality. The stitching has come undone on ever pair

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 2026KRande

Great Quality and give confidence to teenagers

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Have bought these for all of my granddaughters, they love them, comfortable, no fear of bleeding through, and feel like other pants.

Reviewer Ratings

How do you feel about the size?

Large

Helpful?

Reviewer Ratings

How do you feel about the size?

Large

29 August 2026Janlhad

Better than expected

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Should have bought the smaller size as very stretchy silky material. They wash well . I’m having unexpected bouts of bleeding , which is being investigated, these pants are certainly better than using pads especially in hot weather, being 62 these are the way forward, I would definitely wear them when travelling

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 August 2026Ledi18

I expected too much.

Originally posted on marksandspencer.com (UK)

This is a brilliant idea but they are not ‘highly absorbent’. I am a size 14-16 and the medium was a perfect fit.

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 August 2026EmmaChristina

Comfortable but sizing is very small

No, I don't recommend this

Comfortable and not too bulky to wear, but the fit is way too small.

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

Helpful?

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

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

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