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Heatgen™ Maximum Thermal Fleece Top

Product code: T329225

About this style

Stay cosy during the coldest weather in our Heatgen™ Maximum Thermal fleece top. The high mock neck and long sleeves provide extra warmth, while the soft fleece with added stretch ensures a comfortable fit. Our warmest thermal technology yet keeps you snug without bulk, letting you embrace winter with confidence. M&S Collection: Easy-to-wear wardrobe staples that combine classic and contemporary styles.

M&S

Heatgen™ Maximum Thermal Fleece Top

£22

Colour

Customers say:

Fits true to size()
Band Size

Matching items: Thermal Leggings
Also available in: Tops
Free standard delivery over £60

Reviews (862)

4.5

71% Recommended this product

Mentions
25 March 2026Peakster
Verified Purchase

Mother’s Day Gift.

Yes, I recommend this

I bought it for my Godmother for Mother’s Day and she absolutely loves it.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

24 March 2026HannahOnx
Verified Purchase

Great quality

Yes, I recommend this

Great material, the thermals were great for skiing, washed well also and lovely design

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

23 March 2026Karank
Verified Purchase

Great quality + lovely colour too- great value too

Yes, I recommend this

I love these Heatgen tops bought quite a few in different colours- always keeps us warm too.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

23 March 2026Iloveglass44
Verified Purchase

Too tight

No, I don't recommend this

Although this thermal top was lovely and soft and I was tempted to keep it, it was too tight on me even though it was my correct size, so I returned it.

Reviewer Ratings

How did it fit?

Small

Helpful?

Reviewer Ratings

How did it fit?

Small

21 March 2026MPtel
Verified Purchase

It's OK!

No, I don't recommend this

It seems M&S have changed the material of these tops I preferred the previous heatgen top I purchased which had a fleece inner only it seems to keep me warmer than the new one I brought!

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

20 March 2026GeeneeC
Verified Purchase

Great thermal top

Yes, I recommend this

Really comfortable top cosy and very stylish. Highly recommend

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

18 March 2026Ew115
Verified Purchase

Nice warm top and lovely colour

Yes, I recommend this

Bought whilst in the sale for next winter. Tried it on and happy with it. Probably should have gone up a size as I prefer things loose on me.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

16 March 2026Migs43
Verified Purchase

Cosy

Yes, I recommend this

Love these thermal vests, so warm and cosy and in a good range of colours.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

15 March 2026Man 79
Verified Purchase

Great quality, i would recommend it to a friend.

Yes, I recommend this

Very pleased with this fleece top brilliant good fit and lovely and soft to wear.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

14 March 2026Ipswich1
Verified Purchase

Really comfortable & cosy; washes well.

Yes, I recommend this

Really warm & easy to wear. Can be worn underneath clothes or stand alone. If you wear on its own, I suggest you order a larger size as it is very fitting. I am a 12-14 & I have a 2 x size 18 but think I perhaps should have gone for a size 20. Washes well too.

Reviewer Ratings

How did it fit?

Small

Helpful?

Reviewer Ratings

How did it fit?

Small

14 March 2026amberco
Verified Purchase

Great quality!

Yes, I recommend this

Absolutely the warmest cosy top ever 👍🏼 and brilliant price in the sale! Would love a tab at back of the collar to hang it up!

Reviewer Ratings

How did it fit?

A bit large

Helpful?

Reviewer Ratings

How did it fit?

A bit large

13 March 2026anemoneuk
Verified Purchase

Extra layer of warmth

Yes, I recommend this

Have a few of these max heatgen tops and wear them as an underlayer or on their own as a top and even worn in bed on a really cold night

Reviewer Ratings

How did it fit?

A bit small

Helpful?

Reviewer Ratings

How did it fit?

A bit small

13 March 2026Nicoletta16
Verified Purchase

Love the warmth

Yes, I recommend this

So wonderfully snug and keeps my neck and décolleté warm enough without me feeling strangled. Love this and entire thermal range!

Reviewer Ratings

How did it fit?

Small

Helpful?

Reviewer Ratings

How did it fit?

Small

13 March 2026winterlovinggirl48
Verified Purchase

So warm and cozy.

Yes, I recommend this

Bought this in the sale, great top, very warm and feels super soft, slim fitting and nice and long.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

12 March 2026Devon incomer
Verified Purchase

Excellent quality and so warm

Yes, I recommend this

I bought one at full price a few weeks ago and loved it, so when they were half price in the sale I bought two more. I now have a black one, a red one and a round necked taupe one. I wish I had bought these years ago as I feel the cold so much. They are so warm and the longer length keeps my back warm. The black one washes well but as it’s so thick it does take a while to dry.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

12 March 2026Plc84
Verified Purchase

Love it

Yes, I recommend this

Excellent!! Warm and really comfortable.. love it!

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

12 March 2026Qwerty57
Verified Purchase

Cosy

Yes, I recommend this

I’ve been buying these thermal top for years, warmest & cosiest to wear when it’s cold.

Helpful?

11 March 2026mandys1
Verified Purchase

Cosy top

Yes, I recommend this

I now have four of these thermal tops each a different colour, great.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

11 March 2026nor52
Verified Purchase

Great thermal top.

Yes, I recommend this

Good quality Thermal top. Lovely wine colour and very warm.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

11 March 2026SomersetBigShopper
Verified Purchase

Very Cosy

Yes, I recommend this

I work outside and in winter thermal tops are a must. Have worn M&S thermal tops for years as they wash well and keep their shape. This top is cosy both inside and out. Great purchase again.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

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