Update your browser for a better shopping experience!

Get faster load times, stronger security and access to all features.

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 (822)

4.8

78% Recommended this product

Mentions
07 December 2025Suffolk Born
Verified Purchase

Wow

Yes, I recommend this

Wow!!!! I am absolutely delighted with both items, l am now so warm. I am even considering getting more.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

07 December 2025CeliaMae
Verified Purchase

Fantastic thermal top

Yes, I recommend this

Very smooth material, lovely and soft. Really keeps you warm.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

07 December 2025Moco181
Verified Purchase

Five star purchase.

Yes, I recommend this

Last year I purchased this top in grey and loved how warm and cosy it was but wished I'd another in a lighter colour so this year got it in cream. My original has been washed many times and is still as soft and fluffy as the new still unworn one. I can hearty recommend them to anyone who, like me, dreads the onset of Winter, they are worth every penny. I am a petite size 14 but apart from the sleeves being a little long it fits perfectly.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

07 December 2025Noranoo58
Verified Purchase

The best yet

Yes, I recommend this

It is expensive but its well worth it. The only thermal top to keep me warm.

Reviewer Ratings

How did it fit?

A bit small

Helpful?

Reviewer Ratings

How did it fit?

A bit small

06 December 2025LexiLou92
Verified Purchase

Kept me toasty!

Yes, I recommend this

Amazing! I wore mine when going to the Christmas markets with just a thin coat and couldn’t feel the cold at all. Would recommend to anyone.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

05 December 2025Upsydaisy31
Verified Purchase

Not for me

Ordered the wrong item. I wanted the Medium Heatgen thermals. I returned these to the store and purchased the correct items

Helpful?

05 December 2025Old Woman 60
Verified Purchase

Great product

Glad that Marks finally added higher necked heat gen to their range. I wear them to be seen and the scoop neck leaves too much skin exposed. Super warm and cozy, I shall put mine on now and probably take it off about April time.

Reviewer Ratings

How did it fit?

A bit small

Helpful?

Reviewer Ratings

How did it fit?

A bit small

05 December 2025Becky583
Verified Purchase

Lovely and warm

Yes, I recommend this

I have three of these and they are an absolute lifesaver in the winter months. They're lovely and soft and really keep you warm. I feel the cold more than most, and can wholeheartedly recommend them to anyone similarly afflicted!

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

05 December 2025Mabel16
Verified Purchase

Warm and cozy

This is ideal to wear on a chilly morning walk with the dog Certainly gives the cozy feel in the damp cold mornings

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

05 December 2025GranE2018
Verified Purchase

Perfect for layering, or not as looks so good

Yes, I recommend this

Super warm, but with the soft touch as well, really tactile. Just what you need in the winter.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

04 December 2025grannymo13
Verified Purchase

Christmas gift

As this is a Christmas gift I cannot review it but because the person who asked for this already had one, I assume it’s Ok!,

Helpful?

04 December 2025Nadia31
Verified Purchase

Amazing quality

Yes, I recommend this

My family and I are so pleased with those thermals. That are absolutely gorgeous. I can easily say the best on the market at all. Highly recommend them.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

04 December 2025Lizzymint
Verified Purchase

Very Cosy and Warm

Yes, I recommend this

I like this very much but I ended up buying the size 20 when I would normally wear 14/16. I want to wear it on its own with plain black trousers or jeans. I found my usual size was too tight for me and showed all my lumps and bumps back and front which I hate. The quality is very good and I know it will keep me nice and warm. Haven’t washed it yet so don’t know if there will be any shrinkage.

Reviewer Ratings

How did it fit?

A bit small

Helpful?

Reviewer Ratings

How did it fit?

A bit small

04 December 2025Violet G6
Verified Purchase

Warm snug top

Yes, I recommend this

Very warm top, bottom curls up a bit, so needs to be tucked in. Warmer than similar tops from elsewhere

Reviewer Ratings

How did it fit?

A bit small

Helpful?

Reviewer Ratings

How did it fit?

A bit small

04 December 2025Madge34
Verified Purchase

Excellent cosy thermal

Yes, I recommend this

Love the higher neckline on these tops. Much warmer and neater now.. Good quality, wash well and keep their shape

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

04 December 2025aidyl
Verified Purchase

Great for cold days

Lovely soft material, kept me warm during the cold spell we recently had.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

04 December 2025LMYUK
Verified Purchase

Great quality and very warm

Yes, I recommend this

Good quality and warm. Good length on the arms, stretchy.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

03 December 2025Mumto1son
Verified Purchase

Thermal top

Best ever thermal top I've ever bought. It does exactly what it says. keeps you nice and warm

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

03 December 2025mistylegs
Verified Purchase

Lovely and cosy

Yes, I recommend this

Good quality thick top. Like the higher neck, compared to my old scooped neck ones.

Reviewer Ratings

How did it fit?

A bit small

Helpful?

Reviewer Ratings

How did it fit?

A bit small

02 December 2025123qwe
Verified Purchase

Super warm

Yes, I recommend this

Love all of the thermals. Perfect for layering of just wearing as a top. I do buy a bigger size as I fing them a bit tight

Reviewer Ratings

How did it fit?

A bit small

Helpful?

Reviewer Ratings

How did it fit?

A bit small

1 of 137