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M&S

2pk Thermal Knee High Socks

£10

Sorry, this item is no longer available

Product code: T609697

About this style

Keep your feet cosy and warm with these thermal knee-high socks from our M&S Collection. Made with innovative Heatgen™ technology, they provide lightweight, supersoft warmth that helps insulate without the bulk. The fabric includes added stretch for comfort and a secure fit that stays in place all day along the long length of the sock. This handy pack includes two pairs of plain socks, perfect for everyday wear during colder months. M&S Collection: Easy-to-wear wardrobe staples that combine classic and contemporary styles.

Details & care

Style

Added Stretch

Features

Soft and cosy brushed fabric that keeps warmth in

Composition

57% acrylic, 30% viscose, 12% polyamide and 1% elastane lycra®

Care

Wash at 40°C

Do not bleach

Do not tumble dry

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 (97)

4.5

71% Recommended this product

Mentions
11 January 2026Keenwalker
Verified Purchase

Disappointing

No, I don't recommend this

Too tight, especially the elastic at the top. Too long and very uncomfortable overall.

Reviewer Ratings

Comfort

Poor

Helpful?

Reviewer Ratings

Comfort

Poor

10 January 2026AP230
Verified Purchase

Nice cosy socks

Yes, I recommend this

Nice cosy socks - and they stay up…might have preferred a more silky texture, but they’re great!

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

08 January 2026JelanaS
Verified Purchase

Nice length and extra padding on soles

Yes, I recommend this

Love the extra padding on soles of these socks, they were a bit snug on the top of legs under the knee. Marks and Spencer please,please bring back the black thick fleece lined socks you did before they are so cosy, comfortable and warm and don’t dig into your legs.

Reviewer Ratings

Comfort

Average

Helpful?

Reviewer Ratings

Comfort

Average

04 January 2026Annie Liverpool
Verified Purchase

Excellent

Yes, I recommend this

Excellent quality exactly what I was looking for and at a very good price

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

04 January 2026Jeffbird
Verified Purchase

Sneaky warmth under jeans or skirts and boots

Yes, I recommend this

Great to wear under slightly cropped jeans, especially with DM boots

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

03 January 2026RoopyE
Verified Purchase

Warm socks

Warm socks that fit well and stay up without being tight.

Helpful?

01 January 2026SB139
Verified Purchase

Great value for money

Yes, I recommend this

Super soft and keep your feet, toasty. Recommend them if you have cold feet.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

01 January 2026Thinksoutsidethebox
Verified Purchase

Good for larger ladies with big calves

Yes, I recommend this

I bought these as I am quite hard on my tights and am always snagging them. As an obese lady of 5ft 8in, 21st with big calves I was a bit sceptical about the fit. They do indeed come up to my knees and there is no roll down when wearing all day. They are a bit tighter at the ankle than I would like but the calf is more generous. I would prefer a lighter knit more stretchy pair so I will keep my eye out hoping they will make some. I am still happy with my purchase.

Reviewer Ratings

Comfort

Good

Helpful?

Reviewer Ratings

Comfort

Good

27 December 2025SooziQoozi
Verified Purchase

Warm socks but…

Yes, I recommend this

Nice warm knee high socks. Unfortunately my toe went through one on the first wearing, so probably not for wearing with trainers…

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

21 December 2025Reba25
Verified Purchase

Warm and comfortable

Yes, I recommend this

I have bought these socks before and these were to top up my stash. They are warm and comfortable. I first bought these long socks after all my socks kept sliding down my shoes and boots. Looking for a solution to this I read that long socks prevented it. I am happy to report that they do.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

20 December 2025fufu77
Verified Purchase

Comfy and warm!

Yes, I recommend this

Keeps you warm, suitable with dress, culottes and skirts.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

20 December 2025Alison 7252
Verified Purchase

2 pairs of women's thermal knee length socks

No, I don't recommend this

I was extremely disappointed with the thermal socks . They had the same description as previous pairs I've bought but these were a completely different feel and no where near as comfortable. Very disappointed

Helpful?

17 December 2025Cas Mal
Verified Purchase

Knee high thermal socks

Yes, I recommend this

Arrived on time excellent purchase just what I needed with icy feet

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

16 December 2025Jcustomer
Verified Purchase

Warm socks

Bought during the cold spell. Not worn yet as it’s warmed up. Look ok. Might buy more if/when it gets cold again.

Helpful?

15 December 2025Nat1969
Verified Purchase

Another winter staple for those who feel the cold.

Yes, I recommend this

Good quality socks. Looking forward to using them on a cold, wintry day.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

14 December 2025AKW25
Verified Purchase

Warm, excellent quality.

Yes, I recommend this

Solved all my cold legs issues when wearing wide legged trousers. Absolutely love.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

14 December 2025Cathy NY
Verified Purchase

Nice socks

Yes, I recommend this

I’ve had these socks before. They fit well and are warm but I wouldn’t call them thermal. I use them for dog walking. They always wash well and last well

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

14 December 2025bmcg
Verified Purchase

Cosy socks for winter

Originally posted on marksandspencer.ie

Yes, I recommend this

Lovely and warm, and they stay up comfortably. Nice under trousers in the winter.

Helpful?

10 December 2025AER184
Verified Purchase

Warm but lightweight and without bulk.

Yes, I recommend this

Warm but lightweight! I use these for skiing, unusual yes, but they give maximum contact with your boots.

Helpful?

09 December 2025Jenny F 23
Verified Purchase

Warm and comfortable

Yes, I recommend this

Seem good quality and stay up. Warm and comfortable.

Helpful?

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