Update your browser for a better shopping experience!

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

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

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.

M&S

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

€9 - €10

Colour

Size

Free standard delivery over €75

Reviews (34)

4.8

82% Recommended this product

Mentions
24 March 2026customer guest

great

Originally posted on marksandspencer.com (UK)

great quality and good value for money, exactly what i needed

Reviewer Ratings

Value for Money

Excellent

Style

Excellent

Material

Excellent

Helpful?

Reviewer Ratings

Value for Money

Excellent

Style

Excellent

Material

Excellent

23 March 2026amnabim

Great quality

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Perfect fit, kids love it for school, comfortable and warm for the colder days.

Reviewer Ratings

How do you feel about the size?

True to size

Value for Money

Good

Style

Good

Material

Good

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

Value for Money

Good

Style

Good

Material

Good

09 March 2026BristolMaria

Best ever

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

These work better than other ‘thermal’ socks. Best I’ve ever bought. I’d buy them again.

Reviewer Ratings

How do you feel about the size?

True to size

Material

Excellent

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

Material

Excellent

26 February 2026Alwaysshopper61

Good fit, good quality socks

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

I got these socks having bought ladies thermal socks, and found them too large for my size 3 (bottom of size range). I love these kids socks which fit perfectly and are warm. Only slight downside is the tops are a little snug/tight.

Reviewer Ratings

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

24 February 2026Warklady

Great Quality

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

I bought these for my grandson who needs them for a school trip. He has been wearing them with the boots he will need and they are very good at keeping his feet cosy and comfortable too. Very pleased with my purchase.

Reviewer Ratings

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

21 February 2026Mama of boys

Great Winter School Socks

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

These are perfect school socks for the winter. Wash well.

Reviewer Ratings

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

18 February 2026Minimum05

Good quality smart socks

Originally posted on marksandspencer.com (UK)

Great warm socks. Smart for everyday wear for small feet. These boys socks work well for me a grown up woman with size 35 feet.

Reviewer Ratings

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

10 February 2026Twinnymum2

Good product

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Bought for sub zero temps and were cozy and comfortable

Reviewer Ratings

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

10 February 2026Barbarame22

Warm and soft

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

These socks are warm and soft and perfect for my daughter in the cold months.

Reviewer Ratings

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

04 February 2026Rose1111

Good quality

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Nice thick warm socks for the winter. Works well in boots

Reviewer Ratings

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

04 February 2026PenguinLondon

Top of sock is extremely tight

Originally posted on marksandspencer.com (UK)

Nice and warm. I have some similar socks which M&S seem to have stopped selling which are perfect. These are quite tight at the top so I have to wear them ruched around my ankle.

Reviewer Ratings

How do you feel about the size?

Small

Helpful?

Reviewer Ratings

How do you feel about the size?

Small

29 January 2026Sue2364

Great set of warm socks

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Really pleased we bought these before weather turned to below freezing x

Reviewer Ratings

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

28 January 2026LDDE

Thermal school socks.

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Great socks, really warm. My daughter says that they are very comfortable.

Reviewer Ratings

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

26 January 2026J Hardy

Lovely thick warm socks

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Lovely thick socks, great quality that really keep my boys feet warm. I bought 2 sizes for both boys and the sizes are true to size and fit perfectly.

Reviewer Ratings

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

22 January 2026jessrog27

Bit tight on the leg which is a bit of a shame

Originally posted on marksandspencer.com (UK)

No, I don't recommend this

Very tight around the leg but very warm and a nice fit on the foot.

Reviewer Ratings

How do you feel about the size?

Small

Helpful?

Reviewer Ratings

How do you feel about the size?

Small

20 January 2026Curry lover S

Kids Thermal Socks

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

I always find adult socks far too big for me, so I have to buy children's socks & I'm absolutely delighted with this find. They are soft & so warm I've had to buy some more.

Reviewer Ratings

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

19 January 2026MumStuff1

Thick and warm

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Bought for school - thick, warm and wash well - what more could you want!

Reviewer Ratings

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

19 January 2026Rotli

Soft and warm

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Son loves these socks for school because they’re so cosy in the cold weather.

Reviewer Ratings

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

18 January 2026HinnyA

Great cosy socks

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

My son is age 9.5 and a size 4 shoe - these are a perfect size. Good quality.

Reviewer Ratings

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

15 January 2026Paula 49

Warm & cosy!

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

I buy these socks every year. They fit me perfectly & are so cosy & warm. I find adult ladies socks always too big for me, so children’s socks do the job. They wash well & keep their shape. Thoroughly recommend.

Reviewer Ratings

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

1 of 6