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M&S

Heatgen™ Medium Thermal Crew Neck Top

£17

Colour

Customers say:

Fits true to size()
Size

Matching items: Thermal Leggings
Free standard delivery over £60

Product code: T329222

About this style

When it's time to pile on the layers, this medium-rated thermal top delivers the perfect balance of warmth and comfort. Our innovative Heatgen™ technology creates a lightweight and supersoft fabric that keeps you warm when the weather gets chilly. Added stretch ensures a flexible fit that moves with you. M&S Collection: versatile styles in modern shapes with unique and playful details.

Details & care

Item details

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, 39% viscose and 6% 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 (383)

4.8

79% Recommended this product

Mentions
24 October 2025123qwe
Verified Purchase

Cosy

Yes, I recommend this

I love these thermals for layering and they come in lots of colours. Feels lovely and soft. I still have some from last year which are still good. I just wanted some different colours

Reviewer Ratings

How did it fit?

A bit small

Helpful?

Reviewer Ratings

How did it fit?

A bit small

24 October 2025Blondie 48
Verified Purchase

Great Quality

Yes, I recommend this

I live these heatgem thermal tops I wear them as soon as it gets cooler keeps you toasty.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

23 October 2025Ruth92
Verified Purchase

Who needs the heating on?

Yes, I recommend this

These are my staples - I have five of them in different colours. They are soft and so cosy. They fit really well - not at all bulky. I live in them.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

23 October 2025Nanny 2085
Verified Purchase

Good quality

Yes, I recommend this

Love this and fits well will order more in different colours

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

23 October 2025violetmaryann
Verified Purchase

Heatgen Thermal top

Yes, I recommend this

Bought for Christmas hoping to wear when it gets cold

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

23 October 2025Turtlebay
Verified Purchase

Cosy and warm top

Yes, I recommend this

Cosy and warm. Wear as base layer or just as a top. Great for under a jumper or sweater for extra warm. Lovely colour to add to my collection

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

23 October 2025Shazbut123
Verified Purchase

Good quality

Yes, I recommend this

Thicker than the previous ones which I prefer. Got the next size up as quite tight fitting. Prefer this type of neck top, keeps you warmer

Reviewer Ratings

How did it fit?

A bit small

Helpful?

Reviewer Ratings

How did it fit?

A bit small

23 October 2025Geniex
Verified Purchase

Thermal crew neck

Yes, I recommend this

Bought four of these in different colours ready for the winter. Feel soft, warm and cosy. Washed well. I usually wear size 12/14 but bought size 16 in these tops and they are a comfortable fit - snug but not tight.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

22 October 2025Maybella
Verified Purchase

Love these tops

Excellent colour and ideal for winter. Useful to wear with spring and summer weight cardigans in winter.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

22 October 2025Myfanwy
Verified Purchase

Lovely…except neck far too small

No, I don't recommend this

Really like these tops in all their various thickness levels of fabric. Have bought several of scoop neck designs, this one being my first with a higher neckline. Now, I’m used to having to purchase a couple of sizes larger than I would usually wear (these tops are skintight) but I wasn’t prepared for this particular neckline being so incredibly small. It felt far too tight for comfort, so much so that I needed to return it for a refund. Shame really. I do hope M&S can perhaps look to being a little more generous with the design of same. I’d like to purchase again if so.

Reviewer Ratings

How did it fit?

Small

Helpful?

Reviewer Ratings

How did it fit?

Small

22 October 2025Moonshadow
Verified Purchase

Great Purchase

Yes, I recommend this

I purchased the Pale Blue colour which is a really nice shade. The warmth of this Thermal Crew Neck Top is so comfortable and cosy. Excellent quality and washes beautifully

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

22 October 2025123lizzie55
Verified Purchase

Great Tops

Yes, I recommend this

I have at least a dozen of these! I don't know where I'd be without them once the weather turns chilly. They're a great under-layer for anything else you want to wear - highly recommend!

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

20 October 2025Cavity and Lacey
Verified Purchase

Thick and warm

Yes, I recommend this

Quite a thick/heavy weight item with a high neck and tight fit but that’s its job. I bought a size up and it was still tight so thankgoodness i don’t go for my usual size.

Reviewer Ratings

How did it fit?

A bit small

Helpful?

Reviewer Ratings

How did it fit?

A bit small

20 October 2025sl1992
Verified Purchase

Inject some colour M&S!

Yes, I recommend this

Great thermals but such boring dull colours, inject some colour M&S please

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

20 October 2025SuzieB71
Verified Purchase

Lovely and cosy

Yes, I recommend this

These tops are excellent, but I did go up a size as a size 10 was far too tight

Reviewer Ratings

How did it fit?

Small

Helpful?

Reviewer Ratings

How did it fit?

Small

19 October 2025Asc666
Verified Purchase

Good quality

Yes, I recommend this

I always size up in these tops. I live in them during the colder months. Warm, comfortable, wash well. Like the pale blue.

Reviewer Ratings

How did it fit?

Small

Helpful?

Reviewer Ratings

How did it fit?

Small

19 October 202530pad
Verified Purchase

not as described

These thermal tops are not as pictured or described. They are not crew neck but low neck.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

19 October 2025Bolonia
Verified Purchase

Simply perfect! 10 out of 10!!

Yes, I recommend this

I bought this as a warm under layer for golf. The sizing is true and the quality very good. I was concerned its thickness wouldn’t do the job. My worries were totally unfounded. It is comfortable, not bulky and lovely and cosy. A perfect under layer or could be worn as a T. I will be ordering more!!

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

18 October 2025Stylisticate
Verified Purchase

Top Thermals

Yes, I recommend this

I am at that age and stage where thermals are a must from autumn to early spring and Marks and Sparks thermal wear is the best. I buy medium for cold autumn days and maximum thermals for the colder winter days. And the tops are good enough to wear alone with skirts or trousers.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

18 October 2025Anon1971
Verified Purchase

Fantastic warmth

Yes, I recommend this

I’ve reviewed almost every thermal style and bought almost every colour. These thermals are superb quality and truly keep you warm. I work in a freezing portacabin and days off are outside all day with dogs. Lovely warmth without needing bulky layers and my daughters are sneaking them to wear too

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

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