Update your browser for a better shopping experience!

Get faster load times, stronger security and access to all features.

M&S

3 Pack Heatgen™ Thermal Ankle Socks (8½ Small to 10½ Large)

£7 - £8

Colour

Customers say:

Fits true to size()
Size

Free standard delivery over £60

Product code: T712110S

About this style

Keep their feet warm and cosy with these Heatgen™ thermal ankle socks. Made with added stretch and a soft welt for comfort. Antibacterial properties in the yarn help to keep feet feeling fresher for longer. With contrasting heels and toes for a smart look.

Details & care

Style

Product Style: Thermal socks

Added Stretch

Safety Warning

Keep away from fire

Composition

62% acrylic, 26% viscose, 11% polyamide and 1% elastane

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 (12)

4.8

92% Recommended this product

10 January 2026Schor1
Verified Purchase

Great quality

Yes, I recommend this

Good quality socks. Keep your feet warm. Great value for money.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

09 January 2026Dee156
Verified Purchase

Lovely and warm

Yes, I recommend this

My grand daughter loves these socks they are warm. Plus they are really soft.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

05 January 2026Mcleoac
Verified Purchase

I love these socks

Yes, I recommend this

Ok, so I’m an adult woman. However no one got the memo that petite people have feet to match their stature, so the “standard” 4 to whatever is way too big and there’s nothing worse than uncomfortable socks. The boys age 7 to 10 size is perfect for me, warm, comfortable, seamless, I stockpile them and wear them all year round. They are practical, wash well, wear well, what’s not to love.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

03 January 2026Daniellag1983
Verified Purchase

Great socks!

Yes, I recommend this

My son loves these socks, so warm and thick - but not to thick that they make him sweaty.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

26 December 2025J Balmforth
Verified Purchase

Great socks but be aware

Yes, I recommend this

Really comfortable socks. Be aware as with other M&S socks sizing is not realistic. I’m a 7 but the 12.5-3.5 are a good fit. 4-7 far too big

Reviewer Ratings

How did it fit?

Large

Helpful?

Reviewer Ratings

How did it fit?

Large

22 December 2025Sem1969
Verified Purchase

Great socks, perfect for those chilly days

Yes, I recommend this

Great socks, good quality, lovely and warm so perfect for those cold days. Will definitely be buying more. Thank you M&S

Reviewer Ratings

How did it fit?

Very small

Helpful?

Reviewer Ratings

How did it fit?

Very small

21 December 2025Hillary R
Verified Purchase

Great quality

Yes, I recommend this

Grandson loves them. Great quality. Good fit. Very comfortable

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

20 December 2025charliesnanny
Verified Purchase

3pk Heatgen™ Thermal Ankle Socks

Yes, I recommend this

they are for a Christmas Present,how ever having brought them before I know they are agood fit and do .keep your feet warm

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

19 December 2025Mitzybushi
Verified Purchase

Socks for my grandson

Yes, I recommend this

I bought these socks for my grandson for colder months. They are thick and warm and fit well.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

17 December 2025Maviemoo
Verified Purchase

Good quality & fit me well

I find adult socks far too big so buy these - am adult size 4, these are perfect!

Helpful?

16 December 2025TurtleToni2022
Verified Purchase

Does what it's supposed to do!

Yes, I recommend this

My son goes to forest school and wears wellies alot. I was concerned about his feet being warm enough. Bought this and those fears are behind me. Very thick and extra warm socks. Had to grab another pack. Just wonderful.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

11 December 2025Babycham1033
Verified Purchase

Thick and warm

Yes, I recommend this

Bought for my son. Nice and stretchy and warm for when the weather gets cold again. Great quality and price. Would recommend .

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

1 of 2