Update your browser for a better shopping experience!

Get faster load times, stronger security and access to all features.

3pk Flexifit™ Modal Full Briefs

Product code: T615390F

About this style

These modal-rich full briefs from Body by M&S feature innovative Flexifit™ technology for comfort that moves with you. The high-rise waist offers flattering coverage while the stretchy fabric ensures a flexible fit that maintains its shape throughout the day. Presented in a convenient pack of three, these underwear items combine practical everyday comfort with soft, comfortable fabric.

Details & care

Style

High rise

Added Stretch

Features

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

Composition

88% modal, 12% elastane (exclusive of trimmings), Gusset (of underwear) - 100% cotton

Care

Wash at 40°C

Do not bleach

Tumble dry medium temperature

Iron at low temperature

Do not dry clean

Body by M&S

3pk Flexifit™ Modal Full Briefs

€20

Colour

Size

Free standard delivery over €75

Reviews (854)

4.5

71% Recommended this product

Mentions
13 June 2026C1523

Great quality

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Soft and incredibly comfortable, maybe erring on the 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

13 June 2026Jo 1962

Great value for money

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Love M&S underwear always great quality for a great price

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 June 2026D Paterson

TOO BIG!

Originally posted on marksandspencer.com (UK)

No, I don't recommend this

TOO BIG Bought to wear with casual wear joggers but I find they slip down. I end up having to hitch them up constantly! Otherwise decent quality d would be b comfy IF they stayed up!

Reviewer Ratings

How do you feel about the size?

Large

Helpful?

Reviewer Ratings

How do you feel about the size?

Large

13 June 2026MR7

Great quality!

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Great quality and comfortable. True to size. Bought these and have purchased another 2 packs. Feels like you’re not wearing any knickers.

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 June 2026NancyFlagWagger

The only knickers I buy

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

This must be the eighth pack of these knickers I have bought. They are so comfortable, last well, and come in a nice range of colours.

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 2026Vicky258

Modal full briefs

Originally posted on marksandspencer.com (UK)

No, I don't recommend this

These briefs are very thin, offer no support at all. A total waste of money

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

12 June 2026Ray39

Great undies

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Love these soo much, soft and comfy to wear, no isues

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

11 June 2026AnSta

Super comfy

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Really lovely, buttery soft and stretchy. I use them for that time of the month where I need to use pads of varying sizes, they are absolutely perfect. The high cut on the leg really adds to the comfort without taking away any integral part of the garment. I have only washed them a couple times, but I have also tumbled them and there are no visible signs of wear/tear/pilling. Hoping they keep shape and vondition for a while, if they do I will order a couple lore multipacks.

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 June 2026Nanna Moulton

Very smooth and lightweight but the fits not great

Originally posted on marksandspencer.com (UK)

No, I don't recommend this

Theres not enough material across the behind and the material dissapears when you move and its not a great look if your trying to pluck it back out!

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 June 2026Nannie of 3

Disappointed

Originally posted on marksandspencer.com (UK)

No, I don't recommend this

I have been buying these knickers for years now and so as normal just ordered 6 pairs In total 2 packs of 3 pairs … the fit is definitely not the same and I’m really disappointed they have defo come up smaller and feel like a totally different product … sort your sizing out M&S I don’t know what’s going on but you seem to be working on smaller sizing and it’s not good for your regular customer

Reviewer Ratings

How do you feel about the size?

Small

Helpful?

Reviewer Ratings

How do you feel about the size?

Small

10 June 2026Munchkinman

Easy to wear Flexifit knickers

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Needed to replace my knickers with new. Find these so easy to wear , you don’t even know you have them on!! I would buy them again. They are so light & the cost is good so you can buy several pairs! Also they don’t take much space in you draw or suitcase.

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

09 June 2026Swimsuir

They are so comfortable

Originally posted on marksandspencer.com (UK)

I love these. They are very different from what I have been wearing for years - the material is lighter and softer - there are no cotton lace trims around the legs and the waist which get scratchy over time and no annoying seams going down the back.

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

09 June 2026KazzieBB

My new best knickers ever!

Originally posted on marksandspencer.com (UK)

No, I don't recommend this

Excellent quality and fit, so comfortable and some lovely colourways. Really good value, and they wash very 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

09 June 2026ChrisR56

Great value

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

I always buy these Flex ifit Briefs as they are very comfortable to wear. Great value and 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

09 June 2026MW23

Exceptionally comfortable- highly recommend-

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Lovely soft knickers that offer support and coverage so you feel neatly tucked in! True to size too. Great shape on the body - good coverage but not old fashioned in any way !!

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

09 June 2026Bhambluenose1

Very comfortable

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

These are not the first time I’ve bought these pants .. very comfortable. The 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

08 June 2026Hackneysongbird

Great buy

Originally posted on marksandspencer.com (UK)

Soft and so comfortable, washes well. These are the perfect briefs for me

Helpful?

08 June 2026Von03

Great quality

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Great quality! These knickers feel great against the skin. They are so 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

08 June 2026Jonesmum

Great colours

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

For some Reason I had to size up with these briefs from my last set. Not that size matters over comfort! Just odd sizing.

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

07 June 2026SharonMA

Softest knickers

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Comfiest knickers ever! I've got two others converted now too. Started wearing them post hysterectomy and have bought more and more since.

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

1 of 143