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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.

Details & care

Style

Product Style: Sport socks

Added Stretch

Composition

78% cotton, 20% polyester and 2% elastane

Care

Wash at 40°C

Do not bleach

Tumble dry medium temperature

Iron at low temperature

Do not dry clean

M&S

5 Pack Cool & Fresh™ Invisible Trainer Liners™

€10

Colour

Size

Free standard delivery over €75

Reviews (31)

4.5

87% Recommended this product

Mentions
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

21 June 2026Luapluap

Good quality, fit and price.

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Great quality and fit, these are far and away the best style of these socks I have bought. They stay on your feet and don’t slip off whilst you are wearing them. They are cool in the hot weather and fit really well. I’ve ordered some more.

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 June 2026sfc4life

Much better sizing!

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Always buy these trainer liners but I do find they shrink a bit. So decided to try men’s which are exactly the same only bigger and will continue to buy these in the future.

Reviewer Ratings

How do you feel about the size?

True to size

Value for Money

Good

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

Value for Money

Good

16 June 2026Frank 17

Frank 17

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

No show socks Feet perfectly true to size cool for summer

Reviewer Ratings

How do you feel about the size?

True to size

Value for Money

Good

Material

Excellent

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

Value for Money

Good

Material

Excellent

06 June 2026Wendy40

Mens invisible trainer liner

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Bought for husband, found they stayed in place all day and the extra grip inside the sock was a good idea. Good quality and seem to have washed well.

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

31 May 2026VictoriaP45

Perfect low socks

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

These socks are great and do not slip off feet as similar ones I have brought. Wash great, quality good and price fantastic!

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

29 May 2026Ginny20

So far so good!

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

I chose these 6 - 8.5 over the womans 6 - 8 as I always find the womens small for me and this allows for any shrinkage. Added bonus you get 1 more for the same price. V. good as almost invisible. Yet to wash and wear them a few times to see if the silicone remains "sticky" as it is this that makes the difference with the liner staying in place!

Reviewer Ratings

How do you feel about the size?

True to size

Value for Money

Excellent

Style

Good

Material

Excellent

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

Value for Money

Excellent

Style

Good

Material

Excellent

25 May 2026Russellhp

Does the job very well

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

On first wear they feel good quality and importantly they have a good sticky heel to keep the sock in place

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

24 May 2026AJS8

Comfortable socks.

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Perfect for suede slip on pumps. They fit well & are non slip, so they don’t disappear under your feet inside pump.

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

18 May 2026Ambrosia46

Stays in place

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

On initial use they seem great, staying in place - not creeping down one’s foot

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

09 May 2026Lesleyf14

Poor quality, will get holes quickly

Originally posted on marksandspencer.com (UK)

These socks get holes very easily. The quality has reduced massively in the past year or so

Reviewer Ratings

How do you feel about the size?

True to size

Value for Money

Poor

Style

Poor

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

Value for Money

Poor

Style

Poor

08 May 2026Yabberdabber

Way too small

Originally posted on marksandspencer.com (UK)

No, I don't recommend this

Way too small for my size 12 wide feet despite the size being 9-12. Probably ok for sizes 7 to 9 but a struggle above this - disappointing and smaller than the Egyptian cotton liners which were too small too

Reviewer Ratings

How do you feel about the size?

Very small

Value for Money

Fair

Style

Average

Material

Average

Helpful?

Reviewer Ratings

How do you feel about the size?

Very small

Value for Money

Fair

Style

Average

Material

Average

19 April 2026Another disappoint

Trainer socks that stay in place

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

The socks are great because they grip the foot and don’t fall down whilst wearing trainers

Reviewer Ratings

How do you feel about the size?

True to size

Value for Money

Good

Style

Excellent

Material

Excellent

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

Value for Money

Good

Style

Excellent

Material

Excellent

12 April 2026Lotus54

Amazing!

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

So comfortable and stay up even on long walks, great quality, a definite win!

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 February 2026SuperNan57

Perfect socks.

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

I have tried several types of invisible socks and they always work their way under my feet. These little beauties stay in place. I bought the white ones first and liked them enough to get the black ones too. Happy days.

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 2026Goldenok1

Well Received.

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Bought these as a gift requested by a family member and the recipient was happy with them. They seem to be of good quality and are doing the job.

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 December 2025TRigg16

Great socks

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Great invisible socks. The grip on the inside of the heel keeps them in place. No falling off into trainers. Very comfortable . No show with trainers.

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 November 2025FatBooge77

Bargain T-shirt Purchase

Originally posted on marksandspencer.com (UK)

Gesta t-shirts. Nice feel. Nice size. Job's a good'un!

Helpful?

16 November 20251mrgrumpy

Satisfaction

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Good quality good fit keep feet warm wear mine in house with slippers

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

13 October 2025Dragon head

Satisfaction

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Good fit well made reasonable price would 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

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