Update your browser for a better shopping experience!

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

M&S

Heatgen™ Maximum Thermal Fleece Joggers

£25

Colour

Customers say:

Fits true to size()
Waist

Free standard delivery over £60

Product code: T327305

About this style

These Heatgen™ Maximum thermal joggers are designed to lock in warmth while keeping movement easy. They're cut in a slim fit and pull on effortlessly. Added stretch in the fabric ensures flexible comfort and handy pockets at the hips bring a practical finish. M&S Collection: versatile styles in modern shapes with unique and playful details.

Details & care

Item details

Model Height: 5ft10"/178cm

Model is wearing size: 12

Style

Non padded

Added Stretch

Composition

55% acrylic, 37% 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 (61)

4.6

72% Recommended this product

Mentions
05 November 2025Paxotium
Verified Purchase

Great leggings

No, I don't recommend this

Lovely warm and soft. But far far too long. I have to roll them up

Reviewer Ratings

How did it fit?

Large

Helpful?

Reviewer Ratings

How did it fit?

Large

05 November 2025Seaview123987
Verified Purchase

Warm and comfy

Yes, I recommend this

Comfy fit, warm and lovely soft material, perfect for keeping warm when working from home!

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

05 November 2025Katie ann
Verified Purchase

Cosy and warm

Originally posted on marksandspencer.ie

Pleased with purchase . Cosy . However rather long . Would buy again if available in a shorter length to cater for people if differing heights

Helpful?

04 November 2025Jangran50
Verified Purchase

Just right

Yes, I recommend this

I had been looking for slim fit joggers as current styles are so baggy, so was glad to find these. They're comfy to wear and fit well.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

03 November 2025AJ6689
Verified Purchase

So cosy

Yes, I recommend this

These joggers are brilliant. I love M&S heatgen T-shirts but this is the first time I bought joggers. I am 5.7 and normally 12-14 in jeans. I bought the 14 as I did not want a tight fit. They are roomy. High waisted and a decent leg length. A 12 would have worked too I suspect. So cosy and soft. It has been quite warm lately so not worn much and not washed yet. They will get me through the winter at home. Will buy another pair

Reviewer Ratings

How did it fit?

A bit large

Helpful?

Reviewer Ratings

How did it fit?

A bit large

03 November 2025Mj44
Verified Purchase

Great Quality

Yes, I recommend this

really comfy and more stylish than i expected, good length for a 5ft4in

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

02 November 2025Tumpty
Verified Purchase

Disappointing

No, I don't recommend this

I had high hopes. Warm. Cuffed. Plus pockets!!! But SO long in the leg. Waist band elastic folds up inside the casing. Unfortunately returned.

Helpful?

01 November 2025chwaer50
Verified Purchase

Practical and warm

Yes, I recommend this

These are warm and comfortable, I bought a pair last year and have renewed my purchase.Great to wear around the house. I find all M&S thermal products really useful. These do however pick up cats hairs !!!!

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

01 November 2025MrsJM99
Verified Purchase

Better than the previous version

Yes, I recommend this

These Heatgen joggers are thicker than the ones I purchased last year and I love them. I bought both colours in my usual M&S Size 8 and they fit perfectly. I wear them with the loose cuff turned under which gives a straighter leg appearance. They are much more comfortable to wear around the house than jeggings or leggings.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

01 November 2025Oofah
Verified Purchase

Size Down If Between Sizes

Stretchy fleece fabric with generous fit so I (14-16) sized down to 14. Too long so can either chop cuff off and hem or turn up. Great to have pockets. Nice and warm and teamed with thermal socks. Would like a navy. Will decide after washing. Wearable outside.

Reviewer Ratings

How did it fit?

A bit large

Helpful?

Reviewer Ratings

How did it fit?

A bit large

01 November 2025Bonbonnie44
Verified Purchase

The best joggers ever!

Yes, I recommend this

These are the most comfortable soft cozy warm joggers in the world! Please please make them in navy, khaki, brown and burgundy. I need them in all colours! The waistband is extremely comfortable (perfect for that time of the month!) love them so much!

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

01 November 2025Sue xyz
Verified Purchase

Great warm comfy trousers

Yes, I recommend this

These trousers are exceptionally warm, soft and comfortable and quite a nice shape I think. Once you have worn them you won’t want to take them off. I had to buy another pair

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

31 October 2025Lightdays
Verified Purchase

Love these!

Yes, I recommend this

These are so soft, warm and cosy with a nice long leg length, I love them. I’ve already ordered two more because they are perfect for winter.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

31 October 2025koh256
Verified Purchase

I love these joggers

Yes, I recommend this

These are a lovely proper black colour, smarter than I was expecting, a nice length on me (I'm 5' 7") not too tight round the ankle and above all, really warm. I might buy 6 more pairs and get rid of the rest of my trousers just so I can wear them all the time!

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

31 October 2025Bluetit44
Verified Purchase

This is my second pair!

Yes, I recommend this

Brilliant joggers, lovely soft fabric, so warm and comfy. They're just as good for lounging on the sofa as for trapping the heat after outdoor swimming. Love them!

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

31 October 2025Kittenmittens
Verified Purchase

Not for animal lovers.

No, I don't recommend this

Definitely warm. However, if you have pets, every single hair or bit of fluff sticks to them, they are like a Fuzzy Felt board. I also tried to wear them outside to clean out the chickens, the result was quite hilarious, the woodshavings and hay adhered to me made me look like a living scarecrow. I really wish I hadn't kept them but you live and learn. But if you have a lovely clean pet free house they will be great.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

30 October 2025Toastyangel
Verified Purchase

Warm and comfortable

Yes, I recommend this

Love these joggers excellent fit extremely comfortable and warm

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

30 October 2025Ams1612
Verified Purchase

Great quality and very comfortable

Yes, I recommend this

Very warm and good quality product good value for money

Reviewer Ratings

How did it fit?

A bit large

Helpful?

Reviewer Ratings

How did it fit?

A bit large

28 October 2025Hazepink
Verified Purchase

Perfect

Lovely soft warm cosy joggers, good length (I take a long). I sized up to a 12, my daughter took the 10. Could have worn either but preferred them slightly looser

Helpful?

28 October 2025Jennifer16
Verified Purchase

Fleece joggers

Yes, I recommend this

These are great just now as it is getting colder. Would recommend them to any one that feels the cold a bit .

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

1 of 11