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2 Pack Heatgen™ Thermal Leggings (2-14 Yrs)

Product code: T714003T

About this style

Keep them warm when temperatures drop with these essential Heatgen™ thermal leggings. Two-pack design in a cosy cotton blend with brushed fabric for extra comfort. Elasticated waists ensure a secure fit while ribbed ankle cuffs hold the shape throughout active days.

M&S

Online only

2 Pack Heatgen™ Thermal Leggings (2-14 Yrs)

€16 - €17

Colour

Waist

Free standard delivery over €75

Reviews (69)

4.8

87% Recommended this product

Mentions
26 February 2026nr2001

Always outstanding

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

We were very pleased with the quality of our purchase. That is what brings us back time and again to M&S!

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 February 2026SueCFU

Great quality

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Happy with these Thermal leggings. Good value. The children's sizes are great for me as im petite.

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

11 February 2026GeMc84

Great additional layer

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

I bought this for our trip to Copenhagen this February as the weather was very cold. My son liked it, he said it kept him warm and was very soft and comfortable under his trousers.

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 2026Liliwenfach2

Great quality

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Its so cosy and quick to dry, I bought two and three matching vests in three different colours! I wear them in the gym!

Reviewer Ratings

How do you feel about the size?

A bit small

Helpful?

Reviewer Ratings

How do you feel about the size?

A bit small

02 February 2026MotherMumMumz

Warm, Cosy Feeling

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Great fit and keeps my daughter lovely and warm! Would definitely 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

29 January 2026AE84

Does the job!

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Bought these for my grandson for travelling to and from school and for weekend rugby and football!

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 2026DurhamDee

Great quality, & would certainly recommend

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Great to wear & comfy, wash lovely, & cosy for the winter 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

20 January 2026minniehughes

Great quality

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Great thermals. Smug and warm. Well made. 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

16 January 2026Maria Luz 23

Good quality at a reasonable price

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

I’m petite and I find that the length of these children’s thermal leggings fit me perfectly. The quality is good and the price is reasonable too.

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 December 2025Kimberly75

Good quality

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

My son says they keep him warm, good quality, washes 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

21 December 2025MTNN

Super quality

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

My nephew loves them. They are great for keeping him lovely and warm. Will buy again.

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 December 2025R2409

Good quality

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Bought for my daughter for nursery when it's cold good sizing the leggings at the bottom are cuffed.

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 December 2025Nazzers

Great quality and good value!

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Needed some white bottoms for my grandson who was a snowman in his nursery nativity play. We chose these as they were good value and would be useful in cold weather underneath his trousers etc. lively and soft.

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 December 2025sedra

Great for layering

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

They fit well and warm especially for school children.

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 December 2025Londoner abroad

Essential in cold weather

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

I ordered it for my grandkids and everyone seems happy, including parents.

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

11 December 2025Carolo1

Extra warmth

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Needed addition for winter, especially in minus conditions. Extra warmth for playing in the snow.

Reviewer Ratings

How do you feel about the size?

A bit large

Helpful?

Reviewer Ratings

How do you feel about the size?

A bit large

02 December 2025RuudieWhoL1T

No muss, no fuss

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Good service. Good communication. Prompt delivery. No muss, no fuss.

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

01 December 2025LHGC

Ok

Originally posted on marksandspencer.com (UK)

No, I don't recommend this

My son says they’re ok but could be better as they’re not warm enough.

Reviewer Ratings

How do you feel about the size?

A bit small

Helpful?

Reviewer Ratings

How do you feel about the size?

A bit small

30 November 2025Moca1

Warm and soft

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Been buying this thermal for a few years. They are fluffy and warm. Not tight and sticking to the skin which is great!

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 November 2025Bev2013

Very warm and wash well

Originally posted on marksandspencer.com (UK)

Good quality, very warm and wash well, fabulous buy

Helpful?

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