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M&S

3 Pack Heatgen™ Light Thermal Socks

£12

Colour

Customers say:

Fits true to size()
Size

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 (350)

4.3

67% Recommended this product

Mentions
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?

12 December 2025FuzzyBun
Verified Purchase

Look like good socks

I bought these as a gift. They seem good and I like that they are fairly plain for everyday use. Can't comment further as they're not for me.

Helpful?

12 December 2025hattersfamily
Verified Purchase

Good quality item

Yes, I recommend this

I bought these as a present for my husband good quality and at an affordable price and quick delivery service

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

08 December 2025Lil85
Verified Purchase

Socks! Look good. A present for someone.

Yes, I recommend this

They came promptly, as they’re a present I can’t give anymore detail.

Helpful?

04 December 2025kagg
Verified Purchase

Great service.

These were bought as a gift so I can't comment on size, comfort etc. Only to say they arrived on time.

Helpful?

04 December 2025lukie
Verified Purchase

comfortable and cosy

Yes, I recommend this

Bought these socks for my husband, he always had cold feed, warm at last.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

01 December 2025
Verified Purchase

Great quality..

Yes, I recommend this

Great quality. Very comfortable. I like the coloured bands. Keeps a check on wearing out socks.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

28 November 2025Suesuesue
Verified Purchase

Mens heatgen socks

Yes, I recommend this

Great socks , would be nice in other colour beige and black .

Helpful?

26 November 2025RMW2
Verified Purchase

Thin but warm

Yes, I recommend this

I purchased these socks for my husband, who finds them warm & suitable for wear with his smart work shoes & casual shoes too

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

24 November 2025Shaz1561
Verified Purchase

There is nothing thermal about this product.

No, I don't recommend this

Didn’t find it thermal at all as I found it normal socks.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

24 November 2025Esicle
Verified Purchase

Not as good as before

No, I don't recommend this

These are not as good as a previous purchase for cold weather. The fabric seems thinner and not as warm. Also the fabric is rather slippery. Useful socks but not thermal.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

21 November 2025Dave066
Verified Purchase

Very disappointed!

No, I don't recommend this

Very disappointed with purchase. Socks are thinner than normal everyday socks and don’t keep my feet anywhere near as warm. Wouldn’t recommend.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

21 November 2025Ray244
Verified Purchase

Just ok

No, I don't recommend this

Not worth the extra money as no heat to them than normal socks.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

15 November 2025caroleck
Verified Purchase

Black socks

These socks are just perfect, nice and long and don’t fall down. The coloured stripe on the toe is great for pairing them when washed

Helpful?

07 November 2025JAG1808
Verified Purchase

Not very good

No, I don't recommend this

Couldn’t detect any thermal quality in them; holes formed after first washing.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

04 November 2025Ada73
Verified Purchase

Great quality

Yes, I recommend this

Very soft and comfortable. Warm and not changing in a wash at all.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

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