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2 Pack Heatgen™ Thermal Leggings

Product code: T329233

About this style

Sold as a pack of two, these thermal leggings from M&S use Heatgen™ technology to bring a light warmth rating on cooler days. Added stretch in the fabric gives a comfortable, flexible fit that moves easily with the body. They're an easy layer under trousers or dresses.

M&S

2 Pack Heatgen™ Thermal Leggings

€33

Colour

Waist

Free standard delivery over €75, otherwise €4.50

Reviews (8)

4.3

50% Recommended this product

28 October 2026Dragon65

Delighted!

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Did the job perfectly! I didn’t understand how warm such light leggings would be. They also got really well under all jeans and trousers.

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

28 October 2026Julesea

Great light warm leggings

Always very happy with these handy, warm yet light, no bulky leggings, great even for sleeping. Can recommend

Helpful?

25 October 2026Lindits

Comfy, warm and don't slide down

Originally posted on marksandspencer.com (UK)

I bought these for an Arctic cruise and they were great under my flared jeans. Comfy, didn't slide down and haven't become baggy at the knees.

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 October 2026AnneKG

Cosy leggings

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Bought these last year and loved them. Great for under jeans or trousers. Keep you nice 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

22 October 2026Dedicatedfollower66

Great!

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Great, comfy under jeans and that extra bit of warmth

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

19 October 2026sweetie124

Okay

Originally posted on marksandspencer.com (UK)

These are nice but only if it’s semi cold as they are quite thin. They are also extremely tight - I am a size 6 waist and the size small feels so tight!

Reviewer Ratings

How do you feel about the size?

Small

Helpful?

Reviewer Ratings

How do you feel about the size?

Small

15 October 2026Plc84

Warm and comfy

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

True to size, very comfortable and warm. Really good!

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 October 2026Weaktea

Very thin

Originally posted on marksandspencer.com (UK)

No, I don't recommend this

Very poor. They are described on the website as leggings but they are just like tights and you can see your underwear through them. Not sure how they would keep you warm! Very expensive too.

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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