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Heatgen™ Maximum Thermal Fleece Top

Product code: T329224

About this style

Embrace warmth with this Heatgen™ Maximum Thermal Fleece top. The luxuriously soft fleece fabric features our innovative Heatgen™ technology for superior insulation during the coldest weather. Long sleeves and added stretch ensure a comfortable, flexible fit that moves with your body while maintaining heat retention. The sleek design makes it perfect for layering or wearing alone for maximum thermal protection. 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()
Size

Also available in: Tops
Free standard delivery over £60

Reviews (1206)

4.8

79% Recommended this product

03 April 2026sugarplumb
Verified Purchase

Affordable quality thermal top

Yes, I recommend this

m&s thermal tops are a must have in every wardrobe the warmth and quality cannot be faulted they are a much welcomed gift as we all enjoy comfort and these are so comfortable I do wish they had more variety in colours especially we women have been waiting a long time for a navy thermal top. I highly recommend this garment .

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

03 April 2026Walfie
Verified Purchase

Beautiful

Yes, I recommend this

I love this top, it’s super soft, comfortable and warm…I went on to buy two more. Well made. Washes well and good sizing

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

30 March 2026pezza999
Verified Purchase

Very warm thermals

Yes, I recommend this

I wanted some new thermals for a ski trip to Norway these did not disappoint. Lovely and warm on the slopes with a soft fleece inside.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

25 March 2026mrsplum
Verified Purchase

So Cosy!

Yes, I recommend this

I love these thermal vest/tops. They are just perfect for winter wear under a jumper, very cosy.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

24 March 202671Mum
Verified Purchase

Maximum Warmth.

Yes, I recommend this

I have bought many different heatgen products over the years. Keep you warm in the winter months. A must for watching outdoor sports in the cold, wet and wind. Excellent for keeping you warm and cosy.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

24 March 2026Tonibun
Verified Purchase

Great versatile product.

Yes, I recommend this

Excellent for use under a sleeveless knit or waistcoat. Can be worn on its own. Comfortable to wear.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

21 March 2026Karank
Verified Purchase

Love these Heatgen tops - ideal when it’s chilly!

Yes, I recommend this

Lovely cosy tops ideal for colder weather- they are really warm

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

21 March 2026Nonnie11
Verified Purchase

Good quality

Good quality, cosy and definitely worth purchasing for cost

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

21 March 2026Carolinepompom
Verified Purchase

Snug fit

Yes, I recommend this

I have one of these from a couple of years ago & I also have the thinner ones aswell. I nearly sized down as a size12 is usually too big but luckily I didn’t as it is very snug compared with my others.

Reviewer Ratings

How did it fit?

Small

Helpful?

Reviewer Ratings

How did it fit?

Small

21 March 2026bondgirl21
Verified Purchase

So soft and comfortable fit

Yes, I recommend this

Great item and so soft and will be a staple wear in my winter wardrobe. Thicker material than what I thought but this is an added bonus. Will be looking to buy another in a different colour for the winter. Got this item half price in the sale which is an added bonus 😀

Reviewer Ratings

How did it fit?

A bit small

Helpful?

Reviewer Ratings

How did it fit?

A bit small

21 March 2026bee77
Verified Purchase

New thermal tees

Yes, I recommend this

Time to buy new thermal tees lovely & warm plus great quality & colours

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

20 March 2026melm1961
Verified Purchase

Warm

Yes, I recommend this

Lovely and warm , but very long in the body . I’m 5’3 .

Helpful?

19 March 2026Holly1506
Verified Purchase

Great!

Yes, I recommend this

Bought this to take to Iceland, it was great. Kept me very warm & toasty!

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

19 March 2026Marie154
Verified Purchase

Lovely and fluffy

Yes, I recommend this

It's very soft and a nicer colour than it looked in the photos. I haven't worn it yet so can't comment on how warm it is.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

18 March 2026hill 1
Verified Purchase

Disappointed after washing

No, I don't recommend this

I bought three of the heatagen tops , yes they are warm , yes they are extremely comfortable to wear but unfortunately have become extremely bobbly! Not what I expected from M&S .. they are not something I would wear unless underneath something now as they are so bad . I bought them intending them as a top layer . Very dissatisfied.

Reviewer Ratings

How did it fit?

A bit large

Helpful?

Reviewer Ratings

How did it fit?

A bit large

17 March 2026Ophilia
Verified Purchase

Thermal top, hottest heat.

Yes, I recommend this

Now this is a proper thermal top. Max heat, perfect. I live in these all winter, and have about 8 pairs.

Reviewer Ratings

How did it fit?

A bit small

Helpful?

Reviewer Ratings

How did it fit?

A bit small

17 March 2026GwendolineS
Verified Purchase

Super warm

Yes, I recommend this

Love these heatgen clothing, have some of each weight. these extra warm ones are super warm ,soft ,comfortable, Washes well , I order smaller size the stretch is good

Reviewer Ratings

How did it fit?

A bit large

Helpful?

Reviewer Ratings

How did it fit?

A bit large

16 March 2026Troublenstrife
Verified Purchase

Love it

Yes, I recommend this

This is the 3rd top I've bought and can't recommend it highly enough

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

16 March 2026LMH73
Verified Purchase

Cosy

Yes, I recommend this

Great cosy top. Very form fitting so sits well under other tops.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

15 March 2026Gran to 3
Verified Purchase

warm and snuggly

Yes, I recommend this

warmest thermals i have ever bought - saving a fortune on heating

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

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