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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

Product code: T329224

About this style

Conquer the cold with this long-sleeved thermal top. It's made from luxuriously soft fleece fabric, with our Heatgen™ technology ensuring superior insulation even on the chilliest of days. This style is complete with added stretch for a comfortable fit that moves with you. 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, 14

Style

Added Stretch

Features

Heatgen™ technology

lightweight and supersoft, designed to keep you warm when the weather gets chilly

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 (959)

4.8

77% Recommended this product

Mentions
09 January 2026BERN 1
Verified Purchase

GREAT THERMAL TOP

Yes, I recommend this

LOVELY SOFT AND STRETCHY THERMAL. HAVE YET TO TRY AND SEE HOW WARM IT IS BUT IT IS VERY SOFT AND COSY NEXT THE SKIN, SO I HAVE HIGH HOPES FOR THE THERMAL QUALITIES, NICER QUALITY AND CHEAPER THAN DAMART, WHICH I NORMALLY BUY

Reviewer Ratings

How did it fit?

A bit small

Helpful?

Reviewer Ratings

How did it fit?

A bit small

09 January 2026Foxyminx
Verified Purchase

Good quality!

Yes, I recommend this

I would highly recommend this maximum thermal top for extra warmth. It's a good length and comes in a good selection of colours.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

08 January 2026TARA DOG FRIENDLY
Verified Purchase

Well done Marks and Spencers!!!

Brilliant properties! I have Raynards and this is a huge problem. However these thermal tops and leggings are an absoloute must!!

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

08 January 2026Costalgirl
Verified Purchase

Great Jacket

Yes, I recommend this

Beautiful jacket can dress it up or down Good style looks great with a dress, trousers. Beautiful feel

Reviewer Ratings

How did it fit?

Large

Helpful?

Reviewer Ratings

How did it fit?

Large

08 January 2026AMarriott
Verified Purchase

Love the top

Yes, I recommend this

These tops are so cozy and warm, they wash so well

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

08 January 2026Fussy12
Verified Purchase

The quality and warmth is 5*

Yes, I recommend this

I bought the item in grey with a round neck and would have given it 5* had it been with a polo neck

Reviewer Ratings

How did it fit?

A bit small

Helpful?

Reviewer Ratings

How did it fit?

A bit small

08 January 2026Ria18
Verified Purchase

Very cosy and warm

Yes, I recommend this

The maxi weight is nice and thick for those really cold days , the fabric is soft and very stretchy and keeps me very warm , i love this heatgen range i have bought several in both maxi and med weight to see me throught the winter , they wash and dry very well , these are the best thermals i have ever had , over the years i bought loads and most dont even keep you warm, you cant say that about the heatgen ones .

Reviewer Ratings

How did it fit?

A bit large

Helpful?

Reviewer Ratings

How did it fit?

A bit large

08 January 2026RosieKW
Verified Purchase

TOASTY

Yes, I recommend this

I have various M&S heatgen tops, and I have to say this is the warmest yet. Lovely quality and thick. I work outside a lot and I can wear it with just a fleece over or on its own with just a jacket. In the winter I never wear anything else. Well done M&S ⭐️⭐️⭐️⭐️⭐️

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

08 January 2026L82tgr
Verified Purchase

Best thermal top for warmth

Yes, I recommend this

Pleasantly surprised how beautiful & comfortable this top is, it is so warm but not constricting in any way

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

08 January 2026Janski123
Verified Purchase

Comfortable, warm, cosy and great value

Yes, I recommend this

I got these for the recent cold winter days. They are good quality, SO comfortable and easy to wear. I bought a number of colours as well as some leggings. They wash well and dry quickly. A great price too.

Helpful?

08 January 2026LhasaUK
Verified Purchase

Very snug

Yes, I recommend this

I always buy one or two new thermals each season. My only complaint is the maximum thermal fleece tops have a high neckline. I would like the mid thermal lower neckline.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

08 January 2026Joybells29
Verified Purchase

Cosy & weightless

Yes, I recommend this

Light weight & cosy ideal for winter months ideal comfort

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

08 January 2026Skoobz37
Verified Purchase

Gorgeous top

Yes, I recommend this

I recently purchased this with money I was given for Christmas and birthday. So cosy and warm and perfect the recent cold spell and walking the dog. I love the colour too, also bought the leggings, Looks great with a gilet and boots. Very pleased with my purchase.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

08 January 2026Cazalon
Verified Purchase

So soft

Yes, I recommend this

So soft & cosy love them. Bought in the black & chocolate brown.

Reviewer Ratings

How did it fit?

A bit small

Helpful?

Reviewer Ratings

How did it fit?

A bit small

08 January 2026Jenny FN
Verified Purchase

Fabulously warm!

Yes, I recommend this

Really impressed just how warm and comfortable these are. I have lived in them this winter.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

08 January 2026GRMK
Verified Purchase

Cosy

Lovely and soft, very warm. Quite a snug fit but not tight.

Reviewer Ratings

How did it fit?

A bit small

Helpful?

Reviewer Ratings

How did it fit?

A bit small

08 January 2026bubblychick7
Verified Purchase

Top Quality

Yes, I recommend this

These thermal tops are fabulous, soft, and beautifully made. Excellent quality fabric. It is so stylish and nice and warm. You wouldn't know you wearing a thermal top.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

08 January 2026poverton
Verified Purchase

Bestest thermal ever

Not once felt cold, and freezing all through this past few days when it's been bitterly cold outside, had no need to switch my heating on as have been toasty warm, Ordered and delivered just in time for this cold weather.

Helpful?

07 January 2026Pottersfan13
Verified Purchase

So warm

Yes, I recommend this

This item is the warmest under garment I have ever had. When I wear it under a sweater or sweatshirt I often have to turn the heating down as I am too hot.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

07 January 2026anngab
Verified Purchase

Nice top.

Very nice top, love the colour, washed on cool.Nice and warm. I like the thermal range this year.Feels nice and snug.

Helpful?

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