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M&S

2pk Heatgen™ Maximum Warmth Longer Length Thermal Socks

£14

Colour

Customers say:

Fits true to size()
Size

Free standard delivery over £60

Product code: T104435

About this style

These longer length thermal socks bring warmth to cold conditions with their thick, insulating design. Our innovative Heatgen™ thermo technology works to keep you comfortable when temperatures drop. A fabric combination generates and retains heat for lasting comfort throughout the day, providing extra warmth for your legs. Cut to a long length with a considered stretch, they offer a fit that stays in place all day - perfect for cooler weather and ideal for wearing with boots, they balance practical warmth with everyday style. Comes in a convenient pack of two. M&S Collection: easy-to-wear wardrobe staples that combine classic and contemporary styles.

Maximum warmth for keeping cosy in colder climates.

Details & care

Style

Product Style: Thermal socks

Length 36cm from base of heel top of leg

Added stretch

Features

Heatgen™ technology

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

Composition

54% acrylic, 35% polypropylene, 5% polyamide, 5% polyester 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 (250)

4.4

68% Recommended this product

Mentions
12 October 2025letdown2
Verified Purchase

Great Work sicks

Yes, I recommend this

Had these before and they are excellent for construction work, soft, warm and hard wearing.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

11 October 2025M wilton
Verified Purchase

Lovely quality easy to put on

Yes, I recommend this

Lovely soft and not at all difficult to put on unlike some other brands. Very warm and snug fit

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

08 April 2025
Verified Purchase

Great quality.

Yes, I recommend this

Lovely and warm. Good length. Material is robust and looks hard weariing.

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

02 March 2025BEW1

Excellent product

Yes, I recommend this

This is the 2nd pair of these socks that I have bought. Very pleased with them, and the efficiency of ordering on-line and collecting item from a local Marks & Spencer food hall.

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

28 February 2025MyselfinAberdeen
Verified Purchase

Just the job

Yes, I recommend this

I bought these to replace the previous, now worn out.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

27 February 2025Hobbes 2
Verified Purchase

Almost perfect

My husband is quite pleased with these socks but would have liked them about 4cms longer in the leg as that would be more comfortable and they would stay up better ! He finds them a little thick to wear with normal shoes

Reviewer Ratings

Quality

Excellent

Value for Money

Good

How did it fit?

True to size

Helpful?

Reviewer Ratings

Quality

Excellent

Value for Money

Good

How did it fit?

True to size

24 February 2025wheelers4
Verified Purchase

Cosy

Yes, I recommend this

Very warm. Love the long length. Does what they say it does

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

20 February 2025Mad54
Verified Purchase

Amazing sox

Yes, I recommend this

They are really warm, stay up and ideal for cycling or just around the house in cold weather

Helpful?

30 January 2025Richard18
Verified Purchase

EXCELLENT LONG SOCKS

Yes, I recommend this

Excellent quality long socks that are really warm & comfortable to wear. I had another pair before this & they lasted a good 3 or 4 years before i needed to buy this replacement pair. WOULD DEFINITELY RECOMMEND.

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

How did it fit?

True to size

Helpful?

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

How did it fit?

True to size

26 January 2025KayEM
Verified Purchase

Long length for warm legs in the colder weather

Yes, I recommend this

I'm told they are a good fit by my husband who complains about short socks.

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

26 January 2025Pgtwo
Verified Purchase

Excellent warmth and comfort

Yes, I recommend this

Lovely warm socks, and the longer length means they are great under wellies.

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

26 January 2025Goksister
Verified Purchase

Toasty Tootsies!

Yes, I recommend this

Is it warm long socks you are looking for? Comfort & warmth? Look no further. This offering from M&S will leave you with toasty tootsies.

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

Style

Good

How did it fit?

True to size

Helpful?

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

Style

Good

How did it fit?

True to size

20 January 2025Angeliem
Verified Purchase

Warm, long & stay up!

Yes, I recommend this

Warm, long & they stay up! It is not easy to find men's knee length socks these days, but my husband feels the cold on his lower legs. However some socks he was lucky to find in the past never stayed up and were completely useless. These socks stay up and are beautifully warm

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

19 January 2025Teamummy
Verified Purchase

Great buy

Bought for husband with cold feet and legs, perfect fit

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

07 January 2025Chunkyconvert
Verified Purchase

Long warm socks

Yes, I recommend this

Excellent warm long socks. Perfect for keeping legs warm as well as feet. Great value and quality. Wash really well.

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

04 January 2025Ilovemns2016
Verified Purchase

Brilliant thermals

Yes, I recommend this

My husband needed thermal socks for work, they are certainly doing the job and keeping his feet & legs warm

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

01 January 2025BellaHoney
Verified Purchase

Perfect for winter

Yes, I recommend this

Lovely soft and warm winter socks - sort of sock you didn’t know you needed until you wore them.

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

31 December 2024Indexer
Verified Purchase

Cosy warm socks

Yes, I recommend this

Found these socks to be both cosy and warm plus good value for money

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

31 December 2024SKK2021
Verified Purchase

Welly sox but will be worn in walking boots

Yes, I recommend this

Lovely and soft. Nice colours. Not actually worn yet.

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

Helpful?

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

30 December 2024Sarahjgallie
Verified Purchase

Warm and do not slide in wellies

Yes, I recommend this

Good for wearing with wellies do not slide when walking. Super warm (according to the gift recipient!)

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

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