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M&S

3pk Heatgen™ Light Thermal Socks

£12

Sorry, this item is no longer available

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 (333)

4.3

67% Recommended this product

Mentions
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

03 November 2025Chemicalali
Verified Purchase

Good thermal socks

Yes, I recommend this

Purchased last year and bought more as so good. Warm and wash really well. Grey ones sane as last year, but the black pairs are a lot longer!? Kept anyway

Reviewer Ratings

How did it fit?

Large

Helpful?

Reviewer Ratings

How did it fit?

Large

31 October 2025chrisatputney
Verified Purchase

Good for ladies too

Yes, I recommend this

Lovely socks. As an escapee from the women's small ankle or tighter few long socks, these are perfect. Light, warm, long to cover calves comfortably and do not slip down. Good.

Reviewer Ratings

How did it fit?

A bit large

Helpful?

Reviewer Ratings

How did it fit?

A bit large

30 October 2025Lilly2002
Verified Purchase

Warm, wash well and don’t fall down!

Yes, I recommend this

I’m a lady with size 8 and a bit feet. I hate women’s socks. Too short on the ankle. Fall down inside boots. Too naf! These are great. Good quality, really soft and fit well.

Helpful?

29 October 2025Craigo71
Verified Purchase

Don't waste your money

No, I don't recommend this

Very poor thermal socks. Very thin material and didn't get any benefit whatsoever.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

29 October 2025DCR14
Verified Purchase

Great socks

Great socks, colour bands allow to match up , Warm in winter

Helpful?

26 October 2025SSC 1
Verified Purchase

Perfect for cold weather

Yes, I recommend this

Light weight warm socks, perfect for cold weather and able to get correct size instead of one size fits all.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

25 October 2025JaS5
Verified Purchase

Excellent choice

Yes, I recommend this

Good quality and warm. I’m a women’s size 7.5 shoe but find men’s socks wear longer

Helpful?

22 October 2025DavBru
Verified Purchase

Soft and warm, but too big

They were thinner, softer and warmer than the socks they replaced. But I am size 8 1/2, bought the size 6-8 1/2 and found them too big.

Reviewer Ratings

How did it fit?

A bit large

Helpful?

Reviewer Ratings

How did it fit?

A bit large

16 October 2025RRJD
Verified Purchase

Thermal socks: excellent and a bargain

Yes, I recommend this

I bought these socks because they are thermal and they work extremely well and at £4 a pair are an excellent bargain

Reviewer Ratings

How did it fit?

A bit large

Helpful?

Reviewer Ratings

How did it fit?

A bit large

12 October 2025YD20010
Verified Purchase

Comfortable Socks

Yes, I recommend this

A nice, comfortable pair of socks, reasonably priced.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

09 October 2025dmt62
Verified Purchase

A great purchase

Yes, I recommend this

Beautifully warm but fine grade socks. Unlike other heavy thermals they leave shoe space to wriggle your toes.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

06 October 2025openspaceman
Verified Purchase

Warmer than cotton

Yes, I recommend this

Bought these for the colder months as replacement for my usual M&S cotton soft tops. They certainly help to keep feet warmer though in the really cold months I think I’ll be upgrading to the thicker version

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

03 October 2025Jocky6721
Verified Purchase

Nice cosy socks.

Yes, I recommend this

Nice socks. Good feel and fit. Keeps feet nice and cosy

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

17 September 2025Foulis1
Verified Purchase

3PKG Heatgen socks

Arrived on promised date - much finer material than I expected for thermals but they are comfortable ,fit well and warm. Very pleased with them and would recommend them.

Helpful?

16 March 2025Violetpiano
Verified Purchase

Excellent quality

Yes, I recommend this

Great quality and very comfortable. Perfect for all year around use even though they are thermal socks.

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

Style

Average

How did it fit?

True to size

Helpful?

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

Style

Average

How did it fit?

True to size

12 March 2025Herbgirl
Verified Purchase

First Class Socks.

Yes, I recommend this

Bought for my husband. His favourite socks. Very comfortable to wear, warm but not too hot.

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

Style

Excellent

How did it fit?

True to size

Helpful?

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

Style

Excellent

How did it fit?

True to size

06 March 2025Ri54
Verified Purchase

A quality pack of socks

Yes, I recommend this

Bought a second pack for my husband who really likes these

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

Style

Excellent

How did it fit?

True to size

Helpful?

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

Style

Excellent

How did it fit?

True to size

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