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Heatgen™ Medium Thermal Brushed Leggings

Product code: T327300

About this style

Layer up against the winter cold with these Heatgen Plus™ thermal leggings. The Japanese Heatgen™ fabric features a brushed inner layer that traps warmth while keeping the design lightweight and flexible. A stretchy base ensures unrestricted movement, perfect for everyday wear during winter months. The beautifully soft material offers medium warmth without adding bulk under your outerwear. M&S Collection: Easy-to-wear wardrobe staples that combine classic and contemporary styles.

M&S

Heatgen™ Medium Thermal Brushed Leggings

€22

Colour

Waist

Free standard delivery over €75

Reviews (1732)

4.6

71% Recommended this product

Mentions
19 March 2026Debba58

Beautifully soft fabric!

Originally posted on marksandspencer.com (UK)

As with the top - such gorgeous soft fabric! Very comfortable under my workwear trousers and warm

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 March 2026Jophe2004

Warm,comfy and cosy

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

I always have M and S leggings to wear as thermals over the winter period. I have to keep my legs warm and they are just what I need very comfortable and cosy.

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 March 2026Senior customer

Very cosy

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Toasty warm as expected. Very soft and 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

16 March 2026Frustratedly

Very Good Quality

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Fit true to size, warm and comfortable, good 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

15 March 2026MGs 1

Smart leggins

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Great quality wash and keep shape perfectly I would buy again

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 March 2026tinathetrout

great thermal leggings

Originally posted on marksandspencer.com (UK)

These are lovely and warm but not too bulky. I have three pairs now

Helpful?

12 March 2026

Cosy & Snug

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

I love the leggings. They are a good fit and are lovely and warm.

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 March 2026Morrowj

Ideal layer.

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Ideal for where I was going. Good fit and comfortable material.

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 March 2026Bigdogfan123

Great quality

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Bought these for light exercise classes during colder months as not a fan of the sporty leggings. They are super comfy and not too thick. I have a few pairs of them they’re my go to leggings - I love this range.

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

06 March 202642Anon

Comfortable

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Lovely fabric, soft and comfortable. Easy to wear.

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

06 March 2026Comfy300

Bought before

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Bought them before and thought I ought to have one for every day for the winter. They fit well, are not tight, length is fine (I am 5ft 6in) and warm especially when you wear jeans in the winter. Wash 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

05 March 2026Savishopper50

Thermal brushed leggings

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Well … wasn’t keen on taking these with me ,but so glad I did . Kept me so warm under my jeans and trousers ,yet I felt comfy and not over heated and bulky !

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 March 2026Gale force 80

Good quality & Price shame about the fit

Originally posted on marksandspencer.com (UK)

These are warm and comfortable but far to long both in the body and leg, this purchase is a smaller size but the same problem, otherwise I would have given 5 stars

Reviewer Ratings

How do you feel about the size?

Very large

Helpful?

Reviewer Ratings

How do you feel about the size?

Very large

02 March 2026Kate10

Thermal leggings

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Lovely and warm for cold weather wear. Would be too warm for me for as spring wear. I’m 5’ and these leggings are much too long for me. So I would have preferred a ‘short’ version. I decided to keep them as I will wear them tucked in boots or under jeans in very cold weather.

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

27 February 202670Jo

Warm thermogen leggings

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Warm, cosy , stylish leggings good for those chilly winter days would recommend to friends and family

Helpful?

26 February 2026Serhad

Fab leggings

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Love these leggings they fit great and last forever

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 February 2026quietgunner

Lovely cosy leggings

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

I am very pleased with these leggings they are true to size and fit perfectly They also wash and tumble dry with no issues, Highy recommended these leggings

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

25 February 2026ClothesAddict8472638592

Snuggly!

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

I love all the heatgen products, snuggly and warm, and reasonably priced.

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

24 February 2026CurlyCW

Cosy easy wearing leggings

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Lovely soft leggings that are warm and can be worn on their own for walking or instead of tights. Lovely colour and good 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

24 February 2026DiGowland

Thermal leggings

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

So warm and comfortable what a buy and so good value for money so pleased with my purchases

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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