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M&S

Heatgen™ Medium Thermal Brushed Leggings

£17

Colour

Customers say:

Fits true to size()
Waist

Free standard delivery over £60

Product code: T327300

About this style

Layer these beautifully soft Heatgen Plus™ thermal leggings under your outerwear to stay toasty when the temperature drops. Effortless fit in a lightweight design, with a stretchy base for flexible movement. They're made from Japanese Heatgen™ fabric which has a super-soft brushed inner layer designed to ensure you stay extra warm and comfortable on colder days. M&S Collection: versatile styles in modern shapes with unique and playful details.

Details & care

Style

Added Stretch

Features

Heatgen™ technology

lightweight and supersoft, designed to keep you warm when the weather gets chilly

Composition

64% acrylic, 28% viscose and 8% elastane (exclusive of trimmings)

Care

Wash at 40°C

Do not bleach

Do not tumble dry

Do not iron

Do not dry clean

Delivery, collection & returns

Delivery

Standard

UK Standard Delivery is available for £3.99 or free on orders over £60 (excluding furniture).

Nominated Day

UK Next Day Delivery and UK Nominated Day Delivery (excluding Northern Ireland) are available for £5.99 (excluding furniture)

Collection

Collect from store

Store collection is free on all fashion, home and beauty orders.

Returns

UK returns

Free

Exclusions apply

Full delivery and collection informationOur returns policy

Reviews (1531)

4.6

69% Recommended this product

Mentions
04 November 2025Rose 251g
Verified Purchase

Thermal brushed leggings

Yes, I recommend this

Really nice soft leggings. Very warm, highly recommend them. I bought 2 pairs in navy and black.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

03 November 2025TriciaN14
Verified Purchase

These are the best quality thermal leggings

Yes, I recommend this

These are the best quality thermal leggings I've bought. I love the cosy, brushed lining. They fit perfectly except for the length, which is too long because I'm not much over 1.60m. The only thing I wish is that they do a short length in leggings.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

03 November 2025Miss Chanel
Verified Purchase

Thermal brushed leggings

These leggings are lovely & fine they’re not too thick so they look good enough for going out. They’re nice & warm .

Helpful?

03 November 2025Patzi
Verified Purchase

Great warm leggings

Yes, I recommend this

I bought these leggings to wear in the colder weather. They are warm and comfortable on colder days. Good and comfortable fit.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

02 November 2025Mrs Donawahay
Verified Purchase

Great product

Yes, I recommend this

Comfy and warm , good value definitely recommend these leggings.

Reviewer Ratings

How did it fit?

A bit large

Helpful?

Reviewer Ratings

How did it fit?

A bit large

31 October 2025J horner
Verified Purchase

Warm winter leggings

This is my fourth pair of thermal leggings really warm for the winter months.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

31 October 20251hc123
Verified Purchase

See through

No, I don't recommend this

As these are thermal and brushed on the inside was expecting them not to be see through but sadly they are - they are very thin and not worth the £17 paid . Unfortunately had worn them for a short while or I would have returned them

Reviewer Ratings

How did it fit?

A bit large

Helpful?

Reviewer Ratings

How did it fit?

A bit large

29 October 2025CurvyMumSz12
Verified Purchase

Poor quality - went bobbly very quickly.

No, I don't recommend this

Lovely leggings, at first but quickly went bobbly, and lost their shape. Not the same as the loser ones o have had for 8 years, which are still ok. Shame.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

29 October 2025Les Bons Enfants
Verified Purchase

Close fitting and lovely and warm.

Yes, I recommend this

My regular purchase to get me through winter chills. They fit perfectly under trousers and are not bulky.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

29 October 2025Friendrefer
Verified Purchase

Good fit and comfortable

Yes, I recommend this

The leggings are a good fit size 10 - I am 5ft 2ins and slim - and the length is good and the waist comfortable. I shall wear them instead of tights as it’s getting colder.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

27 October 2025Beth the Cook
Verified Purchase

Lovely texture

Yes, I recommend this

very comfortable and cozy. I have arthritis of the hip and on colder days these leggings help to keep the area warm. Lovely texture

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

26 October 2025Alicys
Verified Purchase

Thermal leggings

Lovely leggings. Good fit. Keeps my legs warm under trousers.

Helpful?

26 October 2025Glamourousgrannie
Verified Purchase

Excellent product

Yes, I recommend this

Excellent product but it would be good to have an option of a longer length

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

23 October 2025JackieI
Verified Purchase

So cosy

Yes, I recommend this

These leggings are so warm and cosy, I just wish they were available in a short length

Reviewer Ratings

How did it fit?

Large

Helpful?

Reviewer Ratings

How did it fit?

Large

23 October 2025May_A
Verified Purchase

Comfortable Leggings

Yes, I recommend this

Last December, I bought these leggings for my daughter for the first time. She has found them to be her most comfortable pair. She praised the comfort and feel of the fabric. I recently purchased a new pair to replace the originals, which had frayed at the seams from wear and tear, as she wears them frequently. I also took this opportunity to buy a pair for her younger sister, who reports the same positive experience and feedback. Although I don’t have a pair myself, I know where to go to purchase leggings when I need to replace my existing pairs.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

20 October 2025missssosea
Verified Purchase

Perfect for extra warmth

I brought these for my mum to wear under thinner trousers, she said so comfortable & cosy,,, now has 3 pairs,,,, they do come up long,,, but mum just turns up.

Helpful?

20 October 2025Aasta
Verified Purchase

Leg warmers

Yes, I recommend this

That's 4 pairs I now have because they are just perfect. Not too thick. Stay in place - no slipping down. Nice cosy feel.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

19 October 2025Cal72
Verified Purchase

Heatgen leggings

Yes, I recommend this

I fell in love with these leggings last year. The warmth and the heat that comes off them are amazing. I would highly recommend them to everyone I speak to.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

18 October 2025Macmay1
Verified Purchase

Excellent quality

Yes, I recommend this

So comfortable and warm. Shame it only comes in one length, giving wrinkles on the knees.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

18 October 2025Stylisticate
Verified Purchase

Top quality thermals

Yes, I recommend this

I wear thermals from autumn to early spring and Marks and Sparks thermal wear is the best. I buy medium for cold autumn days and maximum thermals for the colder winter days. I now own several matching thermal tops and bottoms which I wear with above knee to maxi skirts and ankle or knee length boots. Looks great.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

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