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5 Pack Cool & Fresh™ Invisible Trainer Liners™

Product code: T100313

About this style

Cut for discreet wear, these invisible trainer liner socks balance practicality with comfort with any footwear style. The soft, breathable fabric with added stretch provides a precise fit beneath any footwear, sitting low around the ankle. Engineered with Cool & Fresh technology, the moisture-wicking fabric maintains day-long dryness with effective moisture management. Anti-bacterial elements provide lasting freshness, reducing odour throughout the day. Presented as a five-pair pack for styling. M&S Collection: Easy-to-wear wardrobe staples that combine classic and contemporary styles.

M&S

5 Pack Cool & Fresh™ Invisible Trainer Liners™

€10

Colour

Out of stock online

Size

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Free standard delivery over €75, otherwise €4.50

Reviews (50)

4.2

74% Recommended this product

Mentions
01 October 2026REV

Ok but not for me.

Originally posted on marksandspencer.com (UK)

Ok but dont like the socks with the grip in the heal gives me a rash.

Reviewer Ratings

How do you feel about the size?

True to size

Value for Money

Average

Style

Poor

Material

Poor

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

Value for Money

Average

Style

Poor

Material

Poor

30 September 2026Ladybird

Comfort at last!

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

The ladies 5-6 socks are so very small and tight, so I sized up to mens 7-9 and they are perfect for my 5.5 feet.

Reviewer Ratings

How do you feel about the size?

Small

Value for Money

Excellent

Material

Excellent

Helpful?

Reviewer Ratings

How do you feel about the size?

Small

Value for Money

Excellent

Material

Excellent

30 September 2026

On the small side

Originally posted on marksandspencer.com (UK)

No, I don't recommend this

Great quality but quite small. I’m A shoe size 8 and they only just fit but are meant to be up to 8.5

Reviewer Ratings

How do you feel about the size?

Small

Value for Money

Average

Style

Excellent

Material

Excellent

Helpful?

Reviewer Ratings

How do you feel about the size?

Small

Value for Money

Average

Style

Excellent

Material

Excellent

30 September 2026Liamk

All different sizes

Originally posted on marksandspencer.com (UK)

Bought the biggest size (12-14 I think). 3 of the pairs fit my partner nicely, she has size 5 feet.

Reviewer Ratings

Material

Good

Helpful?

Reviewer Ratings

Material

Good

13 September 2026BooHoo99

Excellent Fit

Originally posted on marksandspencer.com (UK)

These socks are a great fit. Very comfortable and are perfect for “no show” in summer trainers.

Reviewer Ratings

How do you feel about the size?

True to size

Value for Money

Excellent

Style

Excellent

Material

Excellent

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

Value for Money

Excellent

Style

Excellent

Material

Excellent

08 September 2026

Rubbish

Originally posted on marksandspencer.com (UK)

No, I don't recommend this

Too small and difficult to wear for a man.Too small and difficult to wear for a man. Rubbish

Reviewer Ratings

How do you feel about the size?

Small

Value for Money

Poor

Style

Poor

Material

Poor

Helpful?

Reviewer Ratings

How do you feel about the size?

Small

Value for Money

Poor

Style

Poor

Material

Poor

20 August 2026Chapsnaps1

More Colours please!

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

More colours please! I purchased these to wear with leather loafers - not trainers. Please can you introduce more colours that will coordinate with your extensive range of loafers.

Reviewer Ratings

How do you feel about the size?

True to size

Value for Money

Good

Style

Average

Material

Average

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

Value for Money

Good

Style

Average

Material

Average

19 August 2026Scotty74

Poor quality.

Originally posted on marksandspencer.com (UK)

No, I don't recommend this

I bought the white pack and the black.White poor quality.

Reviewer Ratings

How do you feel about the size?

Small

Value for Money

Poor

Style

Poor

Material

Poor

Helpful?

Reviewer Ratings

How do you feel about the size?

Small

Value for Money

Poor

Style

Poor

Material

Poor

15 August 2026samwonderfulmother

Good value

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Nice and comfortable trainer socks fut true to size

Reviewer Ratings

How do you feel about the size?

True to size

Value for Money

Excellent

Style

Excellent

Material

Excellent

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

Value for Money

Excellent

Style

Excellent

Material

Excellent

04 August 2026Dizzy Debs

The best of any I've used.

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

These socks are very good. They fit well and wash up great. They have retained their elasticity and the heel insert reduces the likelyhood of the sock walking down your foot and hiding in your shoe. This does not mean it doesn't happen after extended use, simply that they have more resistance to creeping than other socks I have tried.

Reviewer Ratings

How do you feel about the size?

True to size

Value for Money

Excellent

Style

Excellent

Material

Excellent

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

Value for Money

Excellent

Style

Excellent

Material

Excellent

25 July 2026Rebsy

Too small

Originally posted on marksandspencer.com (UK)

Purchased the 9-12 size for my husband. Unfortunately have to cut packaging to check size and they are miles to tight, he is size 11. Can't return and wish I had bought the larger size. Disappointing as good quality.

Reviewer Ratings

How do you feel about the size?

Small

Value for Money

Good

Material

Good

Helpful?

Reviewer Ratings

How do you feel about the size?

Small

Value for Money

Good

Material

Good

24 July 2026Tinker Bell 26

Perfect trainer socks.

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Great quality product at an affordable price. Socks are pretty thick and cushion the feet. Would definitely recommend.

Reviewer Ratings

How do you feel about the size?

True to size

Value for Money

Excellent

Style

Excellent

Material

Excellent

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

Value for Money

Excellent

Style

Excellent

Material

Excellent

16 July 2026Canthinkofanickname

5 pack cool & fresh Invisible Trainer Liners

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Previously bought, and all fine, and sizes are true.

Reviewer Ratings

How do you feel about the size?

True to size

Value for Money

Excellent

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

Value for Money

Excellent

16 July 2026CrazyCowboy

Great

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Love these! Finally some trainer/invisible socks that stay on my feet all day. There's a good rubber pad at the back that holds them in place.

Reviewer Ratings

How do you feel about the size?

True to size

Value for Money

Excellent

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

Value for Money

Excellent

15 July 2026HayleyC11

Great quality and value.

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Great quality product. Worth paying the little bit extra compared with others. They are very comfy and the heel grip secures them for all day use.

Reviewer Ratings

How do you feel about the size?

True to size

Value for Money

Excellent

Material

Excellent

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

Value for Money

Excellent

Material

Excellent

12 July 2026goldfinches23

Sizes need printing

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

OK, but it would be so helpful if the size could be printed inside all single colour M&S trainer liners and socks as it's so hard to tell a 9-12 black trainer liner from a 5-7 black trainer liner when they've all been through the wash together. Also the biggest size could be a bit bigger.

Reviewer Ratings

How do you feel about the size?

Small

Helpful?

Reviewer Ratings

How do you feel about the size?

Small

09 July 2026Floss18

Good trainer socks

Originally posted on marksandspencer.com (UK)

Bought this by mistake as they are described as trainer socks. No good to wear with loafers.

Helpful?

08 July 2026Jeanniebean10

Best socks!

Originally posted on marksandspencer.com (UK)

Bought for my husband - the only socks that stay in the right place!

Reviewer Ratings

How do you feel about the size?

True to size

Value for Money

Excellent

Material

Excellent

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

Value for Money

Excellent

Material

Excellent

06 July 2026JohnCCam

Perfect sock for trainers

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Very practical sock for trainers comfortable soft cotton perfect for trainers in hot weather

Reviewer Ratings

How do you feel about the size?

True to size

Value for Money

Excellent

Style

Excellent

Material

Excellent

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

Value for Money

Excellent

Style

Excellent

Material

Excellent

23 June 2026Baker 37

Great Value,

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Not the finest quality, but good enough. They keep your feet cool, stay hidden, and remain in place. The star of the show is the little rubber section on the heel. Really impressed how this holds everything in place .

Reviewer Ratings

How do you feel about the size?

True to size

Value for Money

Excellent

Style

Excellent

Material

Good

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

Value for Money

Excellent

Style

Excellent

Material

Good

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