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Heatgen™ Medium Thermal Crew Neck Top

Product code: T329222M

About this style

Stay comfortably warm without the bulk in this thermal top. It has a close, flexible fit with added stretch that sits smoothly under layers for easy wear. The Heatgen™ Medium fabric feels supersoft against the skin and helps retain body warmth on cooler days. A crew neckline and long fitted sleeves complete the simple, streamlined design. M&S Collection: versatile styles in modern shapes with unique and playful details.

M&S

Heatgen™ Medium Thermal Crew Neck Top

£17

£5.09

Colour

Out of stock online

Customers say:

Fits true to size()
Size

Free standard delivery over £60

Reviews (58)

4.8

78% Recommended this product

Mentions
24 February 2026DB1957
Verified Purchase

Comfy as....

Yes, I recommend this

Saw this colour and added to my collection! These have been a godsend this winter. They are so comfy and smart enough to wear under a jacket for work.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

23 February 2026LazyLou2
Verified Purchase

True to size shiny top

Yes, I recommend this

Silver grey top with shiny texture. True to size. Great to wear under smart jacket. Thanks M&S.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

02 February 2026Lovegrey1
Verified Purchase

Excellent quality

Yes, I recommend this

I bought this to wear with pj bottoms. It keeps me warm these cold nights, washes well and keeps its shape.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

01 February 2026mClairew
Verified Purchase

Inconsistent sizing.

No, I don't recommend this

Ordered 3 tops in a larger size as I like them roomy. One is just right, one is about 2" narrower, with rather tight sleeves, the third one is somewhere in between. So - only one is agreeable to wear. Quality is good, but overall rather a disappointment. Shame really.

Reviewer Ratings

How did it fit?

A bit small

Helpful?

Reviewer Ratings

How did it fit?

A bit small

31 January 2026EmB20
Verified Purchase

Great quality!

Yes, I recommend this

Comfortable and warm layering top. Lovely colour, slim fit.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

31 January 2026Rubys mom
Verified Purchase

Great buy

Yes, I recommend this

Brilliant, nice and warm good length. Washed well too. Have purchased previous ones but love long sleeves and higher neck

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

29 January 2026Borneo Sue
Verified Purchase

Thermal top

Lovely material - soft and very warm - a good length (definitely covering the kidneys and lower part of body unlike some thermal tops I have purchased elsewhere.) I will be buying another

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

27 January 2026LPW56
Verified Purchase

Great product

Yes, I recommend this

Great product, great fit. Just what I needed for this weather.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

25 January 2026dyserth1
Verified Purchase

A great buy for the winter.

Yes, I recommend this

So warm and cosy..washes well & retains its shape.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

24 January 2026Jake55ex
Verified Purchase

Disappointing

No, I don't recommend this

Disappointing as not as warm as the other one I bought.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

24 January 2026Marchhare 1964
Verified Purchase

Keeps me warm.

Yes, I recommend this

Very cosy feel for this time of year. I can wear it under a denim shirt or underneath a funnel neck wool sweater for much colder days. Good for underneath clothing when at home and also in bed for colder nights.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

23 January 2026VelvetIce
Verified Purchase

Perfect Thermal

Yes, I recommend this

Perfect thermal top. Not too hot but so cosy and warm, not sweaty. Very stretchy so easy to put on but it doesn’t ride up. Just perfect.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

22 January 2026Anji100
Verified Purchase

Very warm

Very good quality, very warm. Good value for money.

Helpful?

21 January 2026Little Pettie
Verified Purchase

lovely

lovely warm top wear under jumpers now it's cold, perfect for when out walking for layering with out being bulky,lovely and warm, sleeves are long and they are snug fit l always go one size up

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

21 January 2026Sparklebutterfly
Verified Purchase

Excellent Winter Wardrobe Staple

Yes, I recommend this

The quality of the Heatgen range is excellent. The tops come up small, so I always size-up. The jogging pants are a true fit but alas are only available currently in two colours. The tops have more colour choice (and I have all in the range), but some distinct lighter shades of colour would be preferable as this pale mushroom colour looks 'washed-out' and is unflattering to most skin tones. It would be great if M&S could inject the range with exciting colours such as lilac, lime green, burnt orange, etc.

Reviewer Ratings

How did it fit?

A bit small

Helpful?

Reviewer Ratings

How did it fit?

A bit small

20 January 2026Shelliharne
Verified Purchase

They are a good buy!

Yes, I recommend this

They fit well and feel nice and soft and most importantly keep me warm.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

18 January 2026Szuan33
Verified Purchase

Wonderful thermal crew neck top.

Yes, I recommend this

Comfortable thermal crew neck top. It’s very warm, a must for this cols weather. Love the colour too.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

16 January 2026swipey
Verified Purchase

Winter warmers

Yes, I recommend this

Once again lovely and warm and soft but I prefer a round neck

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

13 January 2026Clara999
Verified Purchase

Lovely snug fit without being too thick

Yes, I recommend this

I bought a couple of colours as they fit great and warmth with quality.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

12 January 2026eastmidlander
Verified Purchase

Very cosy top

Yes, I recommend this

Lovely warm top, very comfortable, nice soft fabric, useful crew neck - not too low and not too high. I wish there were more colours available. I went up a size as I found it slightly narrow.

Reviewer Ratings

How did it fit?

A bit small

Helpful?

Reviewer Ratings

How did it fit?

A bit small

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