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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 (653)

4.8

76% Recommended this product

Mentions
23 October 2025Nanny 2085
Verified Purchase

Good quality

Yes, I recommend this

Great for warmth but just too thick for me would be good for sailing

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

22 October 2025Gillyspain
Verified Purchase

Great quality

Yes, I recommend this

I have always bought Heatgen items they are good quality

Reviewer Ratings

How did it fit?

A bit large

Helpful?

Reviewer Ratings

How did it fit?

A bit large

22 October 2025janiebaby50
Verified Purchase

Gorgeous Jumpers

Yes, I recommend this

I brought this jumper in Brown which is gorgeous and in the cream is also gorgeous.They are so comfortable and not itchy ,as I have sensitive skin and hate it if they do .But these are really a lovely fit and flattering to the figure.I am a size 6-8 size and found the extra small a perfect fit .These jumpers elevate any outfit wether it’s jeans, leggings etc.The Length is just right on me as I’m a 5ft 3inch woman it’s a perfect .There is nothing I dislike about these jumpers.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

22 October 2025Topcat15
Verified Purchase

Warm and lightweight

Yes, I recommend this

Very comfortable to wear and a dream to wash and dry. They easily fit under other clothes without being bulky. Other colours or a polo neck style would be nice.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

22 October 2025Sadie 22
Verified Purchase

Great heat

Yes, I recommend this

Warm without being heavy that you can use them under jumpers.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

20 October 2025Kris19
Verified Purchase

Exactly what I wanted!

A match for the joggers I bought as above. So comfortable.

Helpful?

20 October 2025SamRos
Verified Purchase

Warm and cosy fleece

Yes, I recommend this

I purchased this fleece top ready for the cold weather and have already tried it. It feels really warm and cosy.

Reviewer Ratings

How did it fit?

A bit small

Helpful?

Reviewer Ratings

How did it fit?

A bit small

20 October 2025Eliza44
Verified Purchase

COSY THERMAL

Yes, I recommend this

The vest is very warm, snug but comfortable fit, with great choice of colours, although perhaps a couple more pastel colours would be nice. Bought really for the very cold days to come. I may order the medium heatgen and keep this for later in the year.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

20 October 2025Arianelle
Verified Purchase

Get but go large ☺️

Yes, I recommend this

I have 4 of these tops, 2 in the medium thermal and 2 in maximum thermal. The 4 are in sizes 14,16 & 18 and I am a size 12. So the reason for this is that I read from other reviewers that they come up quite tight, so I picked the colours I wanted and didn’t worry about the size. The bigger sizes are more comfy around the trunk, they are only slightly bigger on the shoulder, all are fairly long but then I’m only 5’2”, they are lovely, soft and warm. I wear them under gilets or pinafores and would definitely recommend and go up a few sizes.

Reviewer Ratings

How did it fit?

Small

Helpful?

Reviewer Ratings

How did it fit?

Small

20 October 2025monty10
Verified Purchase

Cost top

Yes, I recommend this

Great item . Good quality. Bought for cold weather . True to size

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

19 October 20253572
Verified Purchase

Great quality

Yes, I recommend this

Excellent but very tight so I opted for size 16 in the end when I am normally 10-12

Helpful?

19 October 2025LizaL
Verified Purchase

Lovely, cosy and great colour

Yes, I recommend this

Bought some Heatgen last year and they kept me warm, always cold in winter. This is lovely though I would buy a sweater in a 10 but had to return and get a 12 because its quite clingy and showed up too many sins! Lovely colour, goes well with my brown corduroy jeans.

Reviewer Ratings

How did it fit?

Small

Helpful?

Reviewer Ratings

How did it fit?

Small

19 October 2025Fibroblasts
Verified Purchase

Fab snug thermal too

Yes, I recommend this

After reading previous reviews I purchased the size12 …I am normally a size 8/10 and the size 12 is still a lovely snug fit …which is just what I wanted…. I will be definitely buying more 👍

Reviewer Ratings

How did it fit?

Small

Helpful?

Reviewer Ratings

How did it fit?

Small

19 October 2025Jo H15
Verified Purchase

Beautifully warm

Yes, I recommend this

I love this beautifully warm and snug vest. Ideal for colder Autumn and Winter days.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

19 October 2025Lauraxoxo
Verified Purchase

Beautiful thermal sweat

Yes, I recommend this

I absolutely love this thermal sweater, it’s not too thick nor too thin, it’s perfect and so is the material! I Love the colour and now I want the royal blue, hoping for more colours in this! I will say, if you’re looking for a more oversized fit then I recommend you size up. For reference I’m size 10-12 and I purchased a size 20 and it fits just how I like it 😍

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

18 October 2025Experienced slipper buyer
Verified Purchase

Soft and warm .

Yes, I recommend this

Long in body. Warm and cosy. Just the thing for winter

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

18 October 2025GailMF
Verified Purchase

Warm & cosy

Yes, I recommend this

So warm and cosy, got a few now in different colours and everyone knows what to get me for Christmas

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

18 October 2025Dalia56
Verified Purchase

Thermal fleece

Yes, I recommend this

Lovely and soft,warm and cosy. Need more colours. Sizing come up very small, I am a 10 and size 14 still comes up quite fitted.

Helpful?

18 October 2025Anon1971
Verified Purchase

Absolutely Toasty!

Yes, I recommend this

These are absolutely toasty, maybe too warm ! I wear these as a single layer under a waterproof smock when outdoors all day with dogs. Warmth without the extra bulk. Wash really well, I have almost all styles in each colour. 100% worth it.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

18 October 2025BowBell
Verified Purchase

Key piece for winter

This top exceeded my expectations. I have numerous thermal vests as I live in a north facing property and this top keeps me warm. I will now expand and get in other available colours. Probably the best investment for this winter.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

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