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3 Pack Heatgen™ Light Thermal Socks

Product code: T104426

About this style

These super soft thermal socks bring warmth with a lightweight touch. Made from a combination of polyamide and other fibres, they feature our clever Heatgen™ technology that helps generate and retain heat during chilly days. A subtle contrast stripe on the toe adds a considered design element to this handy three-pack. M&S Collection: Easy-to-wear wardrobe staples that combine classic and contemporary styles.

Light warmth for cooler conditions and everyday comfort.

M&S

3 Pack Heatgen™ Light Thermal Socks

€16

Colour

Size

Free standard delivery over €75

Reviews (372)

4.3

67% Recommended this product

Mentions
22 March 2026heide

plain and useful for work

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

These socks are nice to wear with black shoes and a business suit. I buy this type of socks quite frequently. They were out fairly quickly as they are for everyday wear.

Reviewer Ratings

How do you feel about the size?

A bit large

Value for Money

Average

Style

Average

Material

Excellent

Helpful?

Reviewer Ratings

How do you feel about the size?

A bit large

Value for Money

Average

Style

Average

Material

Excellent

18 March 2026123 warm

Superb

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

very very good best I've worn in along time, easy to put on and sot abd comfortable

Reviewer Ratings

How do you feel about the size?

True to size

Value for Money

Excellent

Style

Excellent

Material

Excellent

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

Value for Money

Excellent

Style

Excellent

Material

Excellent

16 March 2026johnell

Nice socks but delivery time is horrendous

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

These are nice socks but why does it take a week to arrive at store for collection

Reviewer Ratings

How do you feel about the size?

True to size

Value for Money

Excellent

Style

Average

Material

Excellent

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

Value for Money

Excellent

Style

Average

Material

Excellent

10 March 2026Phil72

Excellent

Originally posted on marksandspencer.com (UK)

These sock are perfect in every way. Soft stretchy and comfortable.

Helpful?

07 March 2026TimothyR

Great - comfortable and do the job well

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

These socks are comfortable and provide good warmth for their thickness (normal) and remain comfortable and easy to put on wash after wash

Reviewer Ratings

How do you feel about the size?

True to size

Value for Money

Good

Style

Good

Material

Excellent

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

Value for Money

Good

Style

Good

Material

Excellent

04 March 2026Jimbob53

Well made.

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Handy pack of thermal socks. I bought them as l suffer from chilblains. The socks seemed to help keeping my feet warm, shortening the the attack.

Reviewer Ratings

How do you feel about the size?

True to size

Value for Money

Good

Style

Good

Material

Excellent

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

Value for Money

Good

Style

Good

Material

Excellent

01 March 2026Serendipity8642

Warm, not restricting, can use with dress shoes

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

I purchased these for my brother, who thinks they're excellent - warm, comfortable, not too tight at the top, and most importantly, they're not too thick for his dress shoes. A review by another customer mentioning this last point had encouraged my purchase.

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

18 February 2026Shoemaniac

Lovely warm socks, nice colour

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Lovely quality socks, nice burgundy colour. Warm 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

16 February 2026DaveBor

Great warm socks

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Great warm socks from wearing with forma or casuak l shoes

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

14 February 2026RussCol

Very Good socks

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Very good socks and comfortable a bit expensive but quality, I would recommend

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 February 2026Lulu 70

Excellent Mens THERMAL SOCKS

Originally posted on marksandspencer.com (UK)

Excellent mens socks very comfortable great value for money soft and Excellent quality and fit fast service &delivery recommend THANK YOU

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

02 February 2026joben

Very comfortable

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Very comfortable and fit well. I always buy Marks socks.

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

31 January 2026Bathshopper321

Thermal socks

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Bought these mens socks for me as the women’s version won’t stay up & neither do these so I knocked a point off. That said, it could be my boots that drag them down!! They are warm & very soft.

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

28 January 2026TerryDW

Great socks

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Light weight but keeps my feet warm on the coldest of days

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 January 2026Powerbuyer

Socks

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Not much to say about these. They are socks. Nice 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

22 January 2026Bourneal46

Poor!

Originally posted on marksandspencer.com (UK)

No, I don't recommend this

Bought these for my husband hoping they would help with his cold feet but sorry to report that they have made no difference whatsoever.

Helpful?

19 January 2026Sweepymagic

Brilliant warmth despite not being that thick

Originally posted on marksandspencer.com (UK)

A relatively think sock for a thermal sock, but surprisingly incredibly warm. I'm finding it great on its own as well as finer undersock.

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 January 2026Nadaboume

Good value

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Neat socks. Nice colour and fit.. Could be warmer.

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 January 2026terryp60

Warm toastie socks

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Very warm and comfortable socks without being bulky. Good value, good purchase.

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 January 2026Marj76

Lightweight thermal socks

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Bought as a present for my son in-law who during the Christmas holiday season went out walking on a bitterly cold day,he could not believe that after a few hours walking his feet were still lovely and warm wearing lightweight socks

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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