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M&S

2 Pack 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 (275)

4.5

70% Recommended this product

Mentions
27 January 2026Herpet
Verified Purchase

Warm and supportive.

Yes, I recommend this

These are wonderfully warm and supportive socks which are a must for winter survival in the northern part of UK. The grey and black colours are fine though an attractive blue option would also be appreciated.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

26 January 2026Varsha01
Verified Purchase

Great quality and nice and warm for this weather

Yes, I recommend this

Yes I bought them for my husband and he is very happy with them

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

26 January 2026Peter_
Verified Purchase

Bedtime warmth

Yes, I recommend this

Very warm and really good length to pull up over calves

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

19 January 2026Julia 75
Verified Purchase

Socks

Yes, I recommend this

Lovely warm socks. Only problem is that cuff at top is too tight. Would love to buy again if that problem was solved,as they leave sore marks on legs.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

16 January 2026Schweinsteiget
Verified Purchase

Great quality

Yes, I recommend this

Nice long socks that keep my feet and legs warm especially in the cold winter days

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

16 January 2026Polesdon
Verified Purchase

Best Socks

Yes, I recommend this

My husband says that they are the best socks as they don’t fall down. They are of good quality and so very warm.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

15 January 2026Mrs D Hales
Verified Purchase

Good socks

No, I don't recommend this

Warm and cozy. Good fit. But the plastic tag used to join the socks together has left a hole in one pair because it had become stuck in the sock so no matter how carefully I removed it I knew it would leave a hole. So I can I can only use one pair!

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

10 January 2026Hey Lou
Verified Purchase

Really warm

Yes, I recommend this

Really warm comfy long length socks. Wash well. Really pleased with them

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

Very warm socks. My son wears Size 14 so choices are limited but these are excellent quality.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

28 December 2025CSC46
Verified Purchase

Very warm!

Yes, I recommend this

Great warm socks, and be able to get bigger sizes.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

27 December 2025Wez
Verified Purchase

Perfect

Yes, I recommend this

Got them for my Dad for Christmas and he absolutely loves them they stay up and keeping his legs lovely and warm

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

26 December 2025LizaLoves
Verified Purchase

Thick warm socks

Yes, I recommend this

Always buy these type of socks for hubby at this time of year. His favorite.This time I bought the long version and he's happy with them.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

20 December 2025GNicho
Verified Purchase

Very soft and warm

Yes, I recommend this

Fit larger calves and these have a lovely fit, very soft and warm.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

17 December 2025Bananas200
Verified Purchase

As it says on the box

Bought it as a tube variety but it clearly wasn’t a ‘tube sock’ as advertised!

Helpful?

08 December 2025Iwl17bso
Verified Purchase

Keeping warm

Yes, I recommend this

I bought these for my husband who was feeling the cold. They certainly keep his legs warm together with his thermal vest.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

05 December 2025tazzigirl
Verified Purchase

Sizing inconsistency

No, I don't recommend this

Too tight in the leg. Lacks stretch to match the larger foot size you should allow for a wider calf. Will be returning

Reviewer Ratings

How did it fit?

Small

Helpful?

Reviewer Ratings

How did it fit?

Small

05 December 2025Godfather2
Verified Purchase

SUPER WARM

Yes, I recommend this

The pack of two full length men's socks are SUPER!

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

19 November 2025Jeanie777
Verified Purchase

Perfect Socks For the Winter

Yes, I recommend this

My husband loves these socks. As with them being thermal they are especially good for this cold weather

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

17 November 2025HalotheWynd
Verified Purchase

Extra length socks

Yes, I recommend this

These are quality long socks giving warmth and also some shin protection; however the barbs fitted to hold two pairs together are deeply set and difficult to remove without causing slight damage to the weave.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

17 November 2025JulieA696
Verified Purchase

Great warm socks

Yes, I recommend this

Nice toastie long socks and great quality as usual from M&S

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

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