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M&S

Heatgen™Thermal High Waisted Leggings

£23

Colour

Customers say:

Fits true to size()
Waist

Inside Leg

Free standard delivery over £60

Product code: T576166

About this style

Lightweight yet cosy, these thermal leggings are a cold-weather essential. They're designed using our Heatgen™ technology, which traps body heat to keep you toasty. The elasticated high-rise waist ensures a flattering fit, while added stretch offers maximum flexibility. M&S Collection: easy-to-wear wardrobe staples that combine classic and contemporary styles.

Details & care

Fit and style

Skinny fit

Elasticated waist

High waisted

Added Stretch

Composition

62% polyester, 35% cotton and 3% elastane (exclusive of trimmings)

Care

Wash at 30°C

Do not bleach

Do not tumble dry

Iron at low temperature

Do not dry clean

Delivery, collection & returns

Delivery

Standard

UK Standard Delivery is available for £3.99 or free on orders over £60 (excluding furniture).

Nominated Day

UK Next Day Delivery and UK Nominated Day Delivery (excluding Northern Ireland) are available for £5.99 (excluding furniture)

Collection

Collect from store

Store collection is free on all fashion, home and beauty orders.

Returns

UK returns

Free

Exclusions apply

Full delivery and collection informationOur returns policy

Reviews (29)

4.7

86% Recommended this product

Mentions
12 November 2025Accast
Verified Purchase

Thermal leggings

Fit well, length and quality excellent very comfortable and warm

Helpful?

11 November 2025Pips2025
Verified Purchase

Cosy and warm

Yes, I recommend this

Perfect for walking the dog. Keep you warm on those cold mornings

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

11 November 2025tlady54
Verified Purchase

Comfy and warm.

Yes, I recommend this

Goof quality and snuggly for those colder days. Easy to put on.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

11 November 2025cheyne
Verified Purchase

Thermal heatgen leghings

Yes, I recommend this

Very nice and warm i also have them in black from last year. Very comfortable.

Reviewer Ratings

How did it fit?

A bit large

Helpful?

Reviewer Ratings

How did it fit?

A bit large

11 November 2025
Verified Purchase

Winter warmer!

Yes, I recommend this

Warm and comfortable when tried on. Length good (regular: I am 5' 4"). Washed at 30 degrees as recommended and did not shrunk. Looking forward to wearing in the colder weather, and have already ordered another pair. Just hoping the furry lining will not shed.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

11 November 2025Kazza07
Verified Purchase

Super cosy.

Yes, I recommend this

Love these. Cosy and warm. Round the house or just going for a walk either way they are comfortable and I like the high waist. I think they are thinner to the previous pairs bought a year ago. When your bending and stretching these give. Don’t go baggy at the knees. Wash really well. I just think these are my go to for comfort. Size is I’d say correct. Length I’m 5”8” and they do fit ok. Buy them you won’t be disappointed

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

11 November 2025nannyfishbone
Verified Purchase

Nice and warm.

Yes, I recommend this

I purchased these leggings in the short fitting, but they were a bit long in the leg. Im 5ft 2. Would still buy again.

Reviewer Ratings

How did it fit?

A bit large

Helpful?

Reviewer Ratings

How did it fit?

A bit large

10 November 2025C28
Verified Purchase

Great Winter Addition

Yes, I recommend this

Great fit, good fabric and warm - a perfect addition for the winter wardrobe

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

10 November 2025rosiepeeps
Verified Purchase

thermo leggings

Yes, I recommend this

These are fabulous, love them. Would like some more colours please.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

10 November 2025FreeMySoul
Verified Purchase

Warm soft leggings!

Yes, I recommend this

Nice, soft and warm leggings for the winter months. A bit tight for my size.

Reviewer Ratings

How did it fit?

A bit small

Helpful?

Reviewer Ratings

How did it fit?

A bit small

09 November 2025KellyMB
Verified Purchase

Great product

Yes, I recommend this

I love these leggings. Very warm and comfortable especially on cold days.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

07 November 2025S T C
Verified Purchase

I buy from this collection every year

Yes, I recommend this

I buy from this collection every year and barely go an autumn or winter day without something from this range. I love it. Great M&S quality and comfort as standard

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

06 November 2025simplyskilful
Verified Purchase

Love them!

Yes, I recommend this

These feel really warm and light. So easy to put on too. I'll be buying more!

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

06 November 2025Nicki JT
Verified Purchase

Good product for the price

These leggings are lovely and warm. The fabric isn't sports performance wear, but they don't claim to be. If you want thermal leggings for general wear in the colder months, at a great price, these do a job.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

02 November 2025Mrs Hayfever
Verified Purchase

Thermal high wasted leggings

Yes, I recommend this

Fabulous, lovely & cosy for colder months will hopefully purchase another pair

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

02 November 2025mkm10
Verified Purchase

Best on the market

Yes, I recommend this

Super comfortable and cosy. Bought in a few colours last year and again this year

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

02 November 2025SM22
Verified Purchase

Great cosy leggings!

Yes, I recommend this

Love these leggings. Like the high waist and regular length is perfect for me at 5ft4. Usually size 8-10 & went for 10 which is v comfortable as didn’t want to feel too tight.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

01 November 2025Anitapeta
Verified Purchase

Good for autumn weather.

Yes, I recommend this

These leggings are thicker than normal, and feel like velvet on the inside due to having a pile. Ive only tried them indoors. Theyve been bought for dog walking during the cold weather as i suffer with cold legs. The fit is good. However, having only worn them once, i noticed the knees bag up by the end of the day.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

30 October 2025Lincslou
Verified Purchase

Good fitting & warm leggings.

Yes, I recommend this

Lovely fitting and warm leggings. Will be ordering again in different colour.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

29 October 2025LizSjoerd
Verified Purchase

High waisted comfort

Yes, I recommend this

I liked the idea of the high waist in these and they are very comfortable. I think they will hold their shape and keep me warm during the winter,

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

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