Update your browser for a better shopping experience!

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

M&S

Heatgen™ Medium Thermal Brushed Leggings

£17

Colour

Customers say:

Fits true to size()
Waist

Free standard delivery over £60

Product code: T327300

About this style

Layer up against the winter cold with these Heatgen Plus™ thermal leggings. The Japanese Heatgen™ fabric features a brushed inner layer that traps warmth while keeping the design lightweight and flexible. A stretchy base ensures unrestricted movement, perfect for everyday wear during winter months. The beautifully soft material offers medium warmth without adding bulk under your outerwear. M&S Collection: Easy-to-wear wardrobe staples that combine classic and contemporary styles.

Details & care

Item details

Model is wearing size: 12

Style

Added Stretch

Features

Heatgen™ technology

lightweight and supersoft, designed to keep you warm when the weather gets chilly

Composition

64% acrylic, 28% viscose and 8% elastane (exclusive of trimmings)

Care

Wash at 40°C

Do not bleach

Do not tumble dry

Do not iron

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 (1684)

4.6

70% Recommended this product

Mentions
02 February 2026Deshare
Verified Purchase

Ideal for outdoor activities

Yes, I recommend this

Perfect for skiing, warm & comfy. Wash well. Nice colour

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

02 February 2026Kymarika
Verified Purchase

Warm legs all day.

Yes, I recommend this

Perfect thermals, warm and comfy to wear. Good quality material and good colours.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

02 February 2026Arianelle
Verified Purchase

Soft and comfortable

Yes, I recommend this

These are so soft and comfortable, much less “fleecy’ than the Maximum Thermal ones so good for a bit warmer weather. I bought 2 colours and both had different lengths and also much shorter than the Maximum Thermal ones I bought, but still ok for me as I am only 5’2”.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

02 February 2026KittyKat778899
Verified Purchase

Definitely a wardrobe essential

Yes, I recommend this

These are amazing. Super soft, super warm and super comfy. Didn't want to take them off!!

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

01 February 2026Trace_C
Verified Purchase

Leggings

Yes, I recommend this

Great length, wore under knitted dress. Look smart, not too thin.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

01 February 2026Twomogs
Verified Purchase

Lovely thermal leggings

Yes, I recommend this

Cosy, soft and stretchy. I chose a size down after reading previous reviews. They fit fine and I'm tall so I'm pleased they are long enough. I cant comment yet on how they wash, but the quality seems good.

Reviewer Ratings

How did it fit?

A bit large

Helpful?

Reviewer Ratings

How did it fit?

A bit large

31 January 2026Gizzy7
Verified Purchase

Leggings

Yes, I recommend this

I love them warm comfortable great quality for money wash up great too.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

31 January 2026eviemay123
Verified Purchase

Good quality, cosy and comfortable.

Yes, I recommend this

Very comfortable, medium weight warmth, easy to wear under trousers.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

30 January 2026bb in london
Verified Purchase

So good I bought another pair

Yes, I recommend this

Comfortable, warm and soft. Great for the last cold spell when I bought a second so I could wear them even when one in the washing.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

29 January 2026janey42
Verified Purchase

Sleek leggings with a fleecy interior.

Yes, I recommend this

This leggins fit snugly and nicely under trousers etc and is certainly a good base layer. I haven't washed it yet so cannot report on that.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

29 January 2026Swaz H
Verified Purchase

Excellent quality and fit.

Yes, I recommend this

Fantastically warm, great fit, perfect for this weather and travelling.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

29 January 2026Lesjahar
Verified Purchase

Too long

Unfortunately these were thinner than I expected and too long so i had to return them.

Reviewer Ratings

How did it fit?

A bit large

Helpful?

Reviewer Ratings

How did it fit?

A bit large

29 January 2026Rosieryan
Verified Purchase

Comfortable, warm and cosy.

Yes, I recommend this

I felt in need of something warm and cosy. These leggings hit the spot, they feel so comfortable and soft. I liked them so much I bought them in all colours! Excellent price too.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

28 January 2026Les585
Verified Purchase

Good quality

Very warm and comfortable love the chocolate brown colour

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

28 January 2026Babs2007
Verified Purchase

Comfort at its best

It has taken some time to find THE leggings. You maximum comfort and tte right thickness. Love these so much I have ores another pair

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

28 January 2026Just74
Verified Purchase

Lovely quality

Yes, I recommend this

Very warm and cosy, not at all bulky. Great as base layer or for loungewear.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

27 January 2026Wabr
Verified Purchase

Good quality

Yes, I recommend this

I changed the heatgen brushed inside and out thermal leggings as I prefer the ones that are only brushed on the inside

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

27 January 2026lynnefont
Verified Purchase

Useful item

Yes, I recommend this

Light weight, soft and comfortable. Will wear under satin skirts for added warmth and could work as leggings for mat based classes. Lovely shade of brown.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

27 January 2026Miranda23
Verified Purchase

Cosy!!

Yes, I recommend this

Very warm and comfortable. Good fit and not too long.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

26 January 2026Barbara29
Verified Purchase

Thermal leggings

Yes, I recommend this

Size 10 navy thermal leggings are ideal to wear under trousers for extra warmth.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

1 of 281