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M&S Collection

Heatgen™ Maximum Thermal Fleece Top

£22

Colour

Customers say:

Fits true to size()
Std Dress Size

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

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.

Details & care

Item details

Model Height: 5ft9"/176cm

Model is wearing size: 12

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 (532)

4.4

67% Recommended this product

Mentions
23 October 2025Alpenrose3
Verified Purchase

Good polo top nice fit

Yes, I recommend this

Lovely and soft and cosy nice fit too good to wear under another top for extra warmth

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

23 October 20251953tina
Verified Purchase

Lovely and warm

Yes, I recommend this

I’ve got a few of these tops, they not only fit lovely they keep the cold out, wouldn’t be without them in winter, they are also great for wearing as a mid layer

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

23 October 2025Denim417
Verified Purchase

Great for winter

Good quality, very warm fabric. Definitely warmer and also slightly thicker than Heatgen Medium items. Smaller fitting, maybe due to fabric type. Go 1-2 sizes up even as a layered item. Think the turtle neck is a design/manufacturing issue and either needs to be stitched down on the inside to stop it riding up or not stitched at the sides at all. Otherwise a good value purchase.

Reviewer Ratings

How did it fit?

A bit small

Helpful?

Reviewer Ratings

How did it fit?

A bit small

22 October 2025PrettyP54
Verified Purchase

Great quality

Yes, I recommend this

This top is very cosy and soft a great fit and also very warm. I bought the burgundy which is a lovely rich colour.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

22 October 2025Tameka03
Verified Purchase

Great

Yes, I recommend this

These are warm and cozy, as an added layer for the much colder days

Reviewer Ratings

How did it fit?

A bit large

Helpful?

Reviewer Ratings

How did it fit?

A bit large

22 October 2025Mrs RWTh
Verified Purchase

Lovely item

Yes, I recommend this

Warm material, super arm length and depth of back. True to size.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

20 October 2025Uju Chukwu
Verified Purchase

Winter is axed

Yes, I recommend this

Provides extra warmth, good value for money, kudos.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

20 October 2025Glasses2c
Verified Purchase

Great for layering, good choice of colours, pricey

Yes, I recommend this

Keeps you cosy warm on colder days under a jumper.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

20 October 2025MissCinnamon
Verified Purchase

Awful

No, I don't recommend this

Really poor quality. It was opening at the seams after one wear so I returned it. Really cheap looking as well. Sizing is probably too small as well

Reviewer Ratings

How did it fit?

Small

Helpful?

Reviewer Ratings

How did it fit?

Small

17 October 2025Sally Dicko
Verified Purchase

Not really impressed

I ordered these in each colour as they looked lovely in the picture. When they arrived the quality is poor they are quite thin. They don’t have much stretch in the and are quite all sized.

Reviewer Ratings

How did it fit?

Very small

Helpful?

Reviewer Ratings

How did it fit?

Very small

17 October 2025Happy113
Verified Purchase

Great thermal vest

Great thermal top to wear underneath when marshalling outside in the winter. Kept me lovely and toasty last weekend. Particularly liked the high neck which blocked out the wind but was still comfortable.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

17 October 2025Country boy and girl
Verified Purchase

Perfect

Yes, I recommend this

Cozy and warm ideal for the winter months. Can wear on its own or underneath.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

16 October 2025Bagli
Verified Purchase

Nice and warm.

Yes, I recommend this

I am pleased with the three tops. They are a bit different from similar tops I bought two years ago but fit well and are very warm. A good fit too.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

16 October 2025Jake 55
Verified Purchase

Great product

Yes, I recommend this

Very warm without being bulky so great as an underneath layer

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

15 October 2025Lottiefoofan1
Verified Purchase

Lovely and warm

Yes, I recommend this

Use under motorcycling jacket - toasty warm and nice and long

Reviewer Ratings

How did it fit?

A bit small

Helpful?

Reviewer Ratings

How did it fit?

A bit small

15 October 2025comfortSeekerJo
Verified Purchase

A bit on the small size

Yes, I recommend this

After reading other reviews I ordered a larger size in white. This top is very fleecy, soft and comfortable . The neckline might not suit everyone as it is a sort of roll neck without actually being sown into the roll but I find it perfect to wear under a turtle neck outer layer. It is lovely and long enough to tuck in to jeans etc.

Reviewer Ratings

How did it fit?

Small

Helpful?

Reviewer Ratings

How did it fit?

Small

14 October 2025Longlength
Verified Purchase

Nice Mock Turtle Neck

Yes, I recommend this

Bought as loungewear to go with matching joggers. Sized up 2. I like the mock turtle neck. Feel very soft and cosy. Not worn yet

Reviewer Ratings

How did it fit?

Small

Helpful?

Reviewer Ratings

How did it fit?

Small

13 October 2025Rosl25
Verified Purchase

Warm and cosy

Yes, I recommend this

It was perfect, lovely and warm and just the right size, will be ordering more

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

13 October 2025Nix66
Verified Purchase

Warm underlayer

No, I don't recommend this

They do a good job as a warm under layer. I bought the size 18 which was very fitted on me. I thought it would be roomy as I’m usually a 16. So I’d suggest buying at least a size bigger than usual. And the neck is definitely unusual - not sure what it’s meant to be but it’s OK I suppose. It’s a cross between a turtleneck and a crew neck and goes straight across my throat.

Reviewer Ratings

How did it fit?

Small

Helpful?

Reviewer Ratings

How did it fit?

Small

13 October 2025Glamerousgranny
Verified Purchase

Great quality

Yes, I recommend this

Given as a present to my daughter, who loves these thermal tops. Great for watching football and other outdoors winter activities.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

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