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Heatgen™ Maximum Thermal Slim Joggers

Product code: T329263

About this style

These Heatgen™ Maximum thermal joggers are made to keep you cosy in the coldest conditions. They're designed in a flattering slim fit from soft fabric with added stretch for easy movement. An elasticated waist ensures a flexible feel, while side pockets add practicality. Heatgen™ Maximum technology helps lock in body heat for exceptional warmth without extra bulk. M&S Collection: versatile styles in modern shapes with unique and playful details.

M&S

Heatgen™ Maximum Thermal Slim Joggers

€33

Colour

Waist

Free standard delivery over €75, otherwise €4.50

Reviews (4)

4.0

50% Recommended this product

01 October 2026Cat Vol

Good item

Yes, I recommend this

Good material, a bit see through, use it for walks and running with a longer top to cover the bum

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

Helpful?

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

01 October 2026Meela65

Thermal leggings

Originally posted on marksandspencer.com (UK)

No, I don't recommend this

Just 3 stars. Fabric is soft and light. I like the cuff bottoms. The sizing is wrong. I choose Small based on I am a size 9 (8 to 10). However the leggings are tight on the waist. You need to go up a size with a risk they may be too big. Recently I bought some pj's bottoms in small and they are comfortable. M&S would be better sizing as 8,10, 12 etc

Reviewer Ratings

How do you feel about the size?

Small

Helpful?

Reviewer Ratings

How do you feel about the size?

Small

29 September 2026MissZander

Perfect for cooler evenings

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Another great Heatgen product, love it! Would 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

28 September 2026gorlucdot

Not as thick as last year’s version

Originally posted on marksandspencer.com (UK)

Bought the thermal joggers last year so when I saw these new arrivals thought I’d order online quickly as I know they soon sell out. However, these don’t feel as thick as the previous ones, although will probably still feel warm. Also, everything now seems to be in s/m/l sizing as opposed to last year’s 10/12/14 etc. Last year I got 10, but reading how sizing appears to be all over the place I thought I’d go for medium, which according to the size guide is equivalent to 12-14. They fit ok, perhaps a bit roomy, but rather that than too tight which small would probably have been. No choice of leg length, but at 5’5” they are just below ankle bone.

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