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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 (561)

4.8

80% Recommended this product

Mentions
07 December 2025Scarlet Woman
Verified Purchase

Great thermal top

Yes, I recommend this

So far I've been wearing this as a very cosy thermal vest under a jumper, but I think it may be substantial enough to wear as a top, as it's not too clingy. I love it and intend to buy another one. I've yet to find out how well it washes, but the reviews were encouraging.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

07 December 202524MA
Verified Purchase

Cosy and warm!

Yes, I recommend this

It fits! Not an easy feat for someone who is petite.

Reviewer Ratings

How did it fit?

A bit large

Helpful?

Reviewer Ratings

How did it fit?

A bit large

06 December 2025Magstaa99
Verified Purchase

Highly recommended

Yes, I recommend this

Really pleased with this thermal top, soft material and really comfortable. So impressed I've bought 2 more in different colours

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

06 December 2025MagsieK
Verified Purchase

Great long sleeve top

Yes, I recommend this

Really impressed with this top. Comfortable,warm and washes well. Went up a size as advised and pleased I did. More choice of colours please!!

Reviewer Ratings

How did it fit?

A bit small

Helpful?

Reviewer Ratings

How did it fit?

A bit small

06 December 2025Getthebasicsright
Verified Purchase

2 pack black poloneck thermal long sleeve

Yes, I recommend this

I bought the 2 pack polo neck heat gen basic which only comes in black. A great basic for layering in the winter. It would be good in neutral colours too

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

06 December 2025Sandie78
Verified Purchase

Great product.

Yes, I recommend this

Great product. Have bought a number of these.good.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

06 December 2025Fifiyellow
Verified Purchase

Great quality

Yes, I recommend this

It is warm and comfortable. It is an unique base layer which is suitable for a day.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

05 December 2025coffecup
Verified Purchase

Just the job!

Yes, I recommend this

Lovely and warm, good colour, snug fit, so if between sizes, I recommend going up a size.

Reviewer Ratings

How did it fit?

A bit small

Helpful?

Reviewer Ratings

How did it fit?

A bit small

05 December 2025Oxfordshire Kate
Verified Purchase

Scratchy neckline

No, I don't recommend this

The fabric is lovely and soft and very warm. However, my neck had a rash after the first wear as the seam around the neckline is scratchy. I have turned it under by hand but this is a serious design fault on an otherwise lovely thermal top

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

05 December 2025Val62val
Verified Purchase

Super soft, keeps you warm

Yes, I recommend this

Purchased in burgundy colour, very soft and warm, great for layering and washes well, great value, fits true to size.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

05 December 2025Dustydaisy
Verified Purchase

Cozy and warm

Yes, I recommend this

These tops are fantastic… my third winter of waring them … they wash so well and keep me beautifully warm. Added to my stash with a new one in Burgundy Bravo M&S

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

05 December 2025Miss Flippy
Verified Purchase

Snug.

Yes, I recommend this

Great thermal top, purchased for a day out walking in the Yorkshire countryside, snug and cosy,

Reviewer Ratings

How did it fit?

A bit small

Helpful?

Reviewer Ratings

How did it fit?

A bit small

05 December 2025EBlonde1
Verified Purchase

The Perfect Base Layer

Yes, I recommend this

Why did I only buy 1? This is a perfect base layer long sleeve vest or the colder months. I wear mine under a fleece top. Super comfy & warm especially for outdoors, but I don't get too hot when I wear indoors either. Dries fast after washing. Will be buying more!

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

04 December 2025Theatregoer49
Verified Purchase

Fabulous thermal top

Yes, I recommend this

Lovely colour, lovely material and very warm! Great for dog walking and under jumpers!

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

04 December 2025Granny S1
Verified Purchase

Love these

Yes, I recommend this

I'm delighted with these thermal tops which keep me warm and still look good. I'm really pleased that there are more colours available this year: I bought two last year and now two more. They wash really well too

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

04 December 2025Effiejj55
Verified Purchase

Thermal Crew Neck thermal top

Yes, I recommend this

I bought the brown top which is lovely and soft and very cosy, so glad I bought it now. Would highly rec ommend.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

04 December 2025Finsnanny
Verified Purchase

Warm to wear

Yes, I recommend this

This thermal top is good to wear under fleeces, jumpers or blouses, not particularly comfortable, wouldn't buy again. Have now invested in silk thermal tops for winter which are more comfortable.

Reviewer Ratings

How did it fit?

A bit small

Helpful?

Reviewer Ratings

How did it fit?

A bit small

03 December 2025sweetipie61
Verified Purchase

Heatgem Thermals

Yes, I recommend this

Lovely and soft and warm without being heavy, wash and dry well, can be used under a cardigan as they make great tops, I am loving the new crew neck design. I have bought quite a few now for Mum and I, good choice of colours. I do recommend to go up one size for a more comfortable fit . I am a size 14 but get a 16 ,Mum is a size 12 so I get a 14 for her. As I work in a Food Hall, these thermals keep me warm and cosy, but great for wearing with ordinary clothing too.

Reviewer Ratings

How did it fit?

A bit small

Helpful?

Reviewer Ratings

How did it fit?

A bit small

03 December 2025claireja13
Verified Purchase

Fabulous thermal

Yes, I recommend this

My go to thermal tops - my office is always freezing so i have these in every colourway - wahsable non iron and fabulous - keeping me warm - i usually have another jumper on top as well but great thermals

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

03 December 2025logistia
Verified Purchase

Great thermal t shirts

Yes, I recommend this

Great thermal T shirts, I bought the green and pale blue ones and love them under shirts or jumpers for the winter.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

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