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M&S

3 Pack Heatgen™ Light Thermal Socks

£12

Colour

Out of stock online

Customers say:

Fits true to size()
Size

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Free standard delivery over £60

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.

Details & care

Style

Product Style: Thermal socks

Added stretch

Features

Heatgen™ technology

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

Composition

52% acrylic, 26% viscose, 21% polyamide and 1% elastane

Care

Wash at 40°C

Do not bleach

Tumble dry medium temperature

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 (365)

4.3

67% Recommended this product

Mentions
16 February 2026DaveBor
Verified Purchase

Great warm socks

Yes, I recommend this

Great warm socks from wearing with forma or casuak l shoes

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

14 February 2026RussCol
Verified Purchase

Very Good socks

Yes, I recommend this

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

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

11 February 2026Lulu 70
Verified Purchase

Excellent Mens THERMAL SOCKS

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

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

02 February 2026joben
Verified Purchase

Very comfortable

Yes, I recommend this

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

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

31 January 2026Bathshopper321
Verified Purchase

Thermal socks

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 did it fit?

A bit small

Helpful?

Reviewer Ratings

How did it fit?

A bit small

28 January 2026TerryDW
Verified Purchase

Great socks

Yes, I recommend this

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

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

24 January 2026Powerbuyer
Verified Purchase

Socks

Yes, I recommend this

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

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

22 January 2026Bourneal46
Verified Purchase

Poor!

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
Verified Purchase

Brilliant warmth despite not being that thick

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 did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

17 January 2026Nadaboume
Verified Purchase

Good value

Yes, I recommend this

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

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

17 January 2026terryp60
Verified Purchase

Warm toastie socks

Yes, I recommend this

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

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

11 January 2026Marj76
Verified Purchase

Lightweight thermal socks

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 did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

10 January 2026Tecl
Verified Purchase

Light thermal socks.

Yes, I recommend this

Great price, light but soft and warm. Would highly recommend.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

08 January 2026Aggs
Verified Purchase

Great purchase.

Yes, I recommend this

Husband liked the material and the fit and the colour.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

06 January 2026Rae GH
Verified Purchase

Good quality... and they really work!

Yes, I recommend this

Bought as a stoking filler for my brother, who gets through socks at a great rate. He reports back that they are a great fit, but more importantly, keep his feet warm!

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

02 January 2026Good companion
Verified Purchase

Bought as a Christmas present for my grandson

Yes, I recommend this

I bought these socks for my 15 year old grandson and he loved them

Helpful?

31 December 2025CeliaAllum
Verified Purchase

Great buy

Yes, I recommend this

It’s lovely and warm Keep my tootsies really warm

Reviewer Ratings

How did it fit?

A bit large

Helpful?

Reviewer Ratings

How did it fit?

A bit large

30 December 2025Olovems111
Verified Purchase

Fantastic socks

Yes, I recommend this

Excellent quality nothing else to say / wash well.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

28 December 2025Magenta11
Verified Purchase

Socks.

Yes, I recommend this

My son likes these as they are very comfortable socks during this cold weather. The colour band was very useful for 'pairing'.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

23 December 2025Artichoke13
Verified Purchase

Only ones without a lumpy seam over the toes

They are OK. Not as thick and cosy as ones I’ve bought before. They are also longer up the leg. I bought them because they are the only ones this year without the toe seam.

Helpful?

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