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3pk Heavy Absorbency Period Full Briefs

Product code: T617320P

About this style

These cotton-rich period underwear full briefs from M&S Collection feature a triple-layer absorbent system that effectively draws moisture away from the body to provide reliable protection against leaks and odour. The low-rise style includes pretty lace detailing and added stretch for comfort, offering full coverage for heavy flow days with heavy-duty protection. Sold as a pack of three, they're made to keep you feeling dry and comfortable throughout the day. 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

Heavy absorbency

Composition

83% cotton, 9% polyamide and 8% elastane (exclusive of trimmings), Gusset layer 1 - 58% polyester, 42% elastomultiester, Gusset layer 2 - 85% polyester, 15% 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

€17.50

Colour

Size

Free standard delivery over €75

Reviews (175)

4.5

76% Recommended this product

Mentions
22 August 2026Devon Drummer

Never lets me down

Originally posted on marksandspencer.com (UK)

Second pack I’ve purchased. Love the leopard print

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 2026CathOB1

Weirdly big

Originally posted on marksandspencer.com (UK)

No, I don't recommend this

Bought these in my usual size and they are like nappies. Would only wear at night! They sit very high on the waist which i would love if they fit.

Reviewer Ratings

How do you feel about the size?

Very large

Helpful?

Reviewer Ratings

How do you feel about the size?

Very large

21 August 2026XOT

Comfortable.

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Excellent value underwear for those days when ‘you are not sure’. 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

18 August 2026Philbee

Comfortable and Practical.

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Very practical colour range and comfortable, lovely fabric combination and shaping suited to my needs.

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

15 August 2026D Grazzer

Great knickers

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Fab knickers, good fit, really absorbent. Good price and great colour variety.

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 August 2026Gingell

Good for light accidents

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Bought these for light middle of the night accidents when one does not get to the loo on time. They do the job 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

08 August 2026ChrisRe

Not for me

Originally posted on marksandspencer.com (UK)

No, I don't recommend this

Not for me. I found them big and cumbersome. I did purchase the lace high leg and they are truly wonderful. From memory the were £5 more maybe that’s the difference

Reviewer Ratings

How do you feel about the size?

Large

Helpful?

Reviewer Ratings

How do you feel about the size?

Large

31 July 2026

Leaked through in 2 hours

Originally posted on marksandspencer.com (UK)

No, I don't recommend this

Leaked completely through after a couple of hours wear. I was expecting these to be great but sadly it leaked completely through the gusset after not long wearing at all. These clearly can’t handle a heavy period despite being labelled heavy absorbency.

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 July 2026AYLES12

Wish these were available when I was younger

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

great product great fit wish they were available when I was younger

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 July 2026

Not as good as they were

Originally posted on marksandspencer.com (UK)

No, I don't recommend this

I don't think the quality is as good as it used to be. Too many seams and lables now. Nowhere near as comfortable. They are okay period pants with regard to absorbency etc.

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

22 July 2026Kir_76

Very comfy

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Great value very comfortable and easy to wear. You can wear all day wi th no worries about leaks. Easy to wash.

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

15 July 2026Molly1592

Love

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

So comfy, TTS with room for bloat. I wouldn’t wear them without a liner on heavy flow days but great for lighter days and extra protection overnight

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 2026T16H

Does the job

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Comfortable and absorbent, very happy with them. Won’t be going back to disposables now.

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

05 July 2026Ange0606

Excellent quality

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Love these give you extra protection if needed great value

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 2026Ann eg

Ticks all the boxes

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

I bought these for my daughter and they tick every box

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 June 2026Honkytonk76

Fab pants period!

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Fabulous knickers for teen and periods. Great material and patterns and really absorbent

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 June 2026Asdfghj12345567

Good value

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

These are good value compared to other brands. They are extremely generous in size- which makes them comfy if you are bloated. They are quite bulky but good for price

Reviewer Ratings

How do you feel about the size?

Large

Helpful?

Reviewer Ratings

How do you feel about the size?

Large

11 June 2026MrsCuddles

Real piece of mind

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

These knickers have been a god send for my mum who has endometrial cancer bleeding. These knickers make sure her clothes and bedding are protected. I prefer the pink/burgundy colour but these are no longer available.

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 2026Hello16

Leaked immediately - do not buy

Originally posted on marksandspencer.com (UK)

No, I don't recommend this

I read the reviews and trusted M&S quality, but these leaked within an hour. Really disappointed.

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 2026Misscarlapink

Comfy and look nice

Originally posted on marksandspencer.com (UK)

Really comfortable, soft and not bulky. Wash and dry well. Not as absorbent but happy to have more pairs and change more regularly.

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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