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M&S

Heatgen™ Maximum Thermal Fleece Leggings

£22

Colour

Customers say:

Fits true to size()
Waist

Matching items: Thermal Top and Thermal Fleece Top
Free standard delivery over £60

Product code: T327303

About this style

These thermal leggings are lined with fleece for a super-cosy feel. They feature our Heatgen™ maximum warmth technology which effectively traps body heat to keep you warm and cosy. Plenty of added stretch means they move with you for a comfortable fit. M&S Collection: versatile styles in modern shapes with unique and playful details.

Details & care

Item details

Model is wearing size: 12

Style

Added Stretch

Features

Heatgen™ technology

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

Composition

55% acrylic, 37% 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 (697)

4.7

75% Recommended this product

Mentions
17 November 2025V Ho
Verified Purchase

Good product

Yes, I recommend this

Good quality materials, downside is a bit too long for me as I’m only 5 foot 3

Reviewer Ratings

How did it fit?

A bit large

Helpful?

Reviewer Ratings

How did it fit?

A bit large

16 November 2025birdhouse
Verified Purchase

Look good and very warm

Yes, I recommend this

These leggings are great. Thick enough not to worry about anywhere being see-through. Very warm and cosy but not sweaty. Good colours. Would definitely recommend.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

16 November 2025jackievc
Verified Purchase

Very stretchy, comfortable and warm

A bit on the long side as they fit big but I’ll buy another pair.

Reviewer Ratings

How did it fit?

Large

Helpful?

Reviewer Ratings

How did it fit?

Large

16 November 2025AngieSki
Verified Purchase

Great Quality Leggings!

Yes, I recommend this

The leggings are so comfortable warm and soft! I have the matching tops too!

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

15 November 2025Rosie Thistle
Verified Purchase

Lovely and warm.

Yes, I recommend this

These maximum thermal leggings are lovely and warm. Trouble is they don't come in different leg lengths. I am size 10 and 5ft tall. The leggings are about 2 inches too long for me. Apart from that they are very good.

Reviewer Ratings

How did it fit?

A bit large

Helpful?

Reviewer Ratings

How did it fit?

A bit large

15 November 2025OAHT
Verified Purchase

Great quality

Yes, I recommend this

Very warm, especially on stormy windy days outside & comfortable & soft

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

15 November 2025Swimfamily
Verified Purchase

Better than ever

Yes, I recommend this

I brought these to replace a faithful old pair and find these are even better fit and softer . Have yet to wash them though but not expecting an issue.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

13 November 2025Sukiwatts
Verified Purchase

Warm & Cosy

Yes, I recommend this

Bought for casual wear with my navy ankle boots for the cold winter weather. Good value, quality & very comfortable. I did size down as the material is so stretchy.

Reviewer Ratings

How did it fit?

A bit large

Helpful?

Reviewer Ratings

How did it fit?

A bit large

13 November 2025Prettyshoes13
Verified Purchase

Soft, warm and versatile leggings

Yes, I recommend this

These heatgen leggings are great, I buy enough to get me through, as I wear them all year round (My office is cold). I wear them as normal leggings, more than thermals. They’re thick enough not to show skin through, really soft inside and out. I always buy black, navy and grey, so can swap round as I please. They are also long enough to cover your ankles and fit under other clothes in winter. Highly recommend.

Reviewer Ratings

How did it fit?

A bit large

Helpful?

Reviewer Ratings

How did it fit?

A bit large

13 November 2025sliptripper
Verified Purchase

Expensive for what they were.

Yes, I recommend this

They weren’t as warm as I’d hoped & long but easy to turn up & I’m only just over 5’ 3”

Helpful?

13 November 2025Pampam21
Verified Purchase

Excellent

Yes, I recommend this

Very good quality. Good fit Would highly recommend

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

12 November 2025Peppipig
Verified Purchase

Perfect for the colder weather

Yes, I recommend this

These are so comfy and warm. Perfect for boots weather. They wash beautifully too. Excellent value for money

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

12 November 2025Upbeat Customer
Verified Purchase

Feminine and on trend

Yes, I recommend this

Trendy chocolate colour instantly elevates these practical pants to desirable feminine and cool So cosy and long

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

12 November 2025Margo07
Verified Purchase

Maximum Warmth

Yes, I recommend this

Love the thickness and warmth of these leggings Hopefully they’ll do the job in Lapland!!!

Reviewer Ratings

How did it fit?

A bit large

Helpful?

Reviewer Ratings

How did it fit?

A bit large

11 November 2025Frigga1964
Verified Purchase

Super soft snuggly leggings

Yes, I recommend this

The second part of my secret weapon against the cold are these lovely soft leggings. At work on my bike or at home they are really warm and comfortable to wear instead of tights. They don’t get baggy and wash and hang dry really well. Please can we have more colours.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

11 November 2025EjaneB123
Verified Purchase

Heatgen max thermal fleece leggings

Not as good as last years.waistband is very thin. Im hoping it doesnt roll with usr.

Helpful?

10 November 2025Ggoha
Verified Purchase

Too long

Yes, I recommend this

my favorite leggings, I buy them every year. This year some are too long. I am average height

Reviewer Ratings

How did it fit?

Very large

Helpful?

Reviewer Ratings

How did it fit?

Very large

09 November 2025Beachdweller
Verified Purchase

Perfect!

Yes, I recommend this

Great quality, great fit, true to size, great value. Should be nice and warm in Switzerland next month!

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

09 November 2025P A Davis
Verified Purchase

Leggings.

Great quality very warm. Get a bigger size as tight fitting.

Helpful?

09 November 2025
Verified Purchase

I’d live in these if I could

Yes, I recommend this

I don’t know how this fabric is made, but it manages to keep me toasty warm. It’s “plush toy” soft, and the leggings fit very well without feeling restrictive. I wear them to bed too! Much better than flimsy nighties on a cold night.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

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