Update your browser for a better shopping experience!

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

3pk Thermal Trainer Liners™

Product code: T607405

About this style

Keep feet cosy in chilly weather with these thermal Trainer Liners™. This handy three-pack is made from lightweight, supersoft fabric with Heatgen™ technology that helps retain warmth. The material includes added stretch for all-day comfort, while the trainer liner design sits discreetly in your footwear for a sleek look. M&S Collection: Easy-to-wear wardrobe staples that combine classic and contemporary styles.

M&S

3pk Thermal Trainer Liners™

€13

Colour

Size

Free standard delivery over €75

Reviews (40)

4.4

78% Recommended this product

Mentions
15 March 2026Catpuglove

Nice sock

Originally posted on marksandspencer.com (UK)

No, I don't recommend this

Good quality and wear for work and exercise walk good price

Reviewer Ratings

Comfort

Good

Helpful?

Reviewer Ratings

Comfort

Good

20 February 2026KayJaq

Cosy little socks

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Lovely little trainer socks keep your feet warm. A little pricey but worth it. Only gave 4 stars because they weren’t as Black as previous pairs I’d purchased

Helpful?

04 February 2026merlamb

Good quality

Originally posted on marksandspencer.com (UK)

Bought for a gift but they look good quality, warm and comfortable, I’m sure my granddaughter will love them, nice colours.

Helpful?

03 February 2026PamCo1

Perfect fit

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Keep your toes cosy. Well made, good design and perfect fit.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

21 January 2026Shadow604

great quality

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

super warm great quality and excellent value for money

Helpful?

19 January 2026BettyBoodle

Lovely little socks

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Love these little socks. Comfy, warm and they fit! Im size 3 so most afults one-size doesnt fit all socks are too big.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

19 December 2025Denjoy

Quality soft trainor socks

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Bought a pack of three and initially they looked great. Nice stylish design and soft, but one pair came up very small! Having cut the tag I decided to keep them and give the small pair away. Thus the low stars. Still think they are good socks

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

19 December 2025Ariesruth

Just ok..

Originally posted on marksandspencer.com (UK)

No, I don't recommend this

Wouldn't say they were thermal! Feet still cold after wearing them!

Reviewer Ratings

Comfort

Average

Helpful?

Reviewer Ratings

Comfort

Average

18 December 2025EmaLondon95

Great, warm & comfy

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Comfy warm and still great after washing no shrinkage like other thermal socks have before.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

05 December 2025Collie girl 1

Good socks

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Great little trainer socks keep my feet lovely and snug.

Helpful?

19 November 2025Jeanie777

Cozy Socks

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

These socks are lovely and warm. I wore them the other day when it was so cold outside and my feet were kept lovely and warm

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

16 November 2025Samira R

Great Item

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Very great quality. Keeps feet warm. I love this so much

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

31 October 2025Flaca

Thermal trainer liners

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

The current ones are of better thicker quality compared to the original ones. So well done M&S. in the winter I wear them over normal socks for extra warmth.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

28 October 2025Hippychick54

Socks for me

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

I have an ankle injury and cannot wear ankle socks at present ...these little beauties are so warm and fit perfectly

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

20 October 2025Jalco10

Best winter weight socks

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

These are the best winter weight trainer socks ever. Keep your feet warm and toasty!!

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

06 October 2025Tattianna

Grest Trainer liners

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Really good thermal trainer liners well made very comfortable and a great price.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

05 October 2025Gangsternan21

Warm sports socks

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Bought these last year so warm in the winter months , sparks offer bonus

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

02 October 2025janew90

Quality warm socks

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

But these every winter they work well for me and wash good

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

03 April 2025anoncat

Quality trainer sock

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Excellent trainer socks. Like the thickness and they wear so well. Been buying them for many years.

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

Style

Excellent

Comfort

Excellent

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

Style

Excellent

Comfort

Excellent

How do you feel about the size?

True to size

31 March 2025styleright

Thermal socks

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

I have bought these socks several times and wasn’t disappointed this time round. They are so comfortable to wear to the gym, wear and wash well and are very good value for money.

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

Comfort

Excellent

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

Comfort

Excellent

How do you feel about the size?

True to size

1 of 7