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Heatgen™ Medium Thermal Crew Neck Top

Product code: T329222

About this style

This medium-rated thermal long sleeve base shirt features innovative Heatgen™ technology for superb warmth without bulk. The lightweight, supersoft fabric retains heat while the added stretch ensures comfort and flexibility as you move. With a classic crew neck, it creates the perfect foundation for winter layering while the smooth fit sits neatly under additional garments. M&S Collection: Easy-to-wear wardrobe staples that combine classic and contemporary styles.

M&S

Heatgen™ Medium Thermal Crew Neck Top

£17

Colour

Customers say:

Fits true to size()
Size

Matching items: Thermal Brushed Leggings
Free standard delivery over £60

Reviews (1079)

4.8

81% Recommended this product

31 March 2026Malady 2
Verified Purchase

Thermal vest.

Yes, I recommend this

This top is so soft, true to size, very comfortable to wear.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

30 March 2026R Hogg
Verified Purchase

Brown Thermal top

Yes, I recommend this

Very cosy to wear under sweaters. Lovely colour too

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

29 March 2026HeatherJ
Verified Purchase

Good Thermal top if a little long

Yes, I recommend this

The thermal tops are really good value for money but I do find most of them really very long in the body which only increases when you wash them, however they are stylish and warm.

Reviewer Ratings

How did it fit?

A bit large

Helpful?

Reviewer Ratings

How did it fit?

A bit large

27 March 2026Yonzi
Verified Purchase

Warm and stylish

Great top, warm and plenty of stretch, repeat order

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

26 March 2026M DNi photo available
Verified Purchase

Absolutely beautiful and very warm and comfortable

Yes, I recommend this

Absolutely beautiful and very warm and comfortable.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

22 March 2026ratattoire
Verified Purchase

Heatgen medium thermal vest

Yes, I recommend this

This is one of three I have purchased I like the fit they are warm and comfy. I wear them under a gillet and older ones I now use as pyjamas with the matching leggings keeps me cosy. They wash well and I usually buy a size larger as I like a loose fit. I love the different colours available too.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

21 March 2026cfos2703
Verified Purchase

Great every day cosy T-shirt

Yes, I recommend this

I normally buy the scoop neck however they don’t seem to make them anymore. This was perfect though and will definitely buy more. I always size up a couple of sizes as they’re really tight otherwise.

Reviewer Ratings

How did it fit?

A bit large

Helpful?

Reviewer Ratings

How did it fit?

A bit large

17 March 20266Mumstheword3
Verified Purchase

Soft, soft, soft!

Yes, I recommend this

Well made and beautifully soft. Nice and warm in cooler days.

Reviewer Ratings

How did it fit?

A bit small

Helpful?

Reviewer Ratings

How did it fit?

A bit small

17 March 2026Soozinkenya
Verified Purchase

so snug

Yes, I recommend this

Bought this top for a skiing trip. Fits well true to size and so cozy to wear under tops or jumpers

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

16 March 2026TJW8
Verified Purchase

Nice warm top

Yes, I recommend this

Lovely and warm. It’s a bit clingy, as I suppose it’s meant to be. I’m pleased I went up one size as I think my usual size would have been a bit too tight.

Reviewer Ratings

How did it fit?

A bit small

Helpful?

Reviewer Ratings

How did it fit?

A bit small

15 March 20263Bs Mum
Verified Purchase

Fabulous

Yes, I recommend this

I have a few of these in different colours perfect close layer for under sweaters on chilly days

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

15 March 2026Jadarb
Verified Purchase

Great product but pricey

Yes, I recommend this

Bought to go under my work uniform. Is very warm but very expensive

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

14 March 2026Katsa
Verified Purchase

Soft and Warm

Yes, I recommend this

Fitted t shirt which keeps cold out. Bought a second one.

Reviewer Ratings

How did it fit?

A bit small

Helpful?

Reviewer Ratings

How did it fit?

A bit small

13 March 2026Bush49
Verified Purchase

Great top to have

Yes, I recommend this

These tops are so comfortable easy to wear and versitable, i have most of the colours

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

12 March 2026Mollyria
Verified Purchase

Molly

Great product. Have several of these, to put under my jumpers. Keeps me warm.

Helpful?

12 March 2026Viv66
Verified Purchase

Great quality!!

Yes, I recommend this

Keeps me lovely & warm at the football as a base layer

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

10 March 2026TeamKris
Verified Purchase

A bit disappointed

No, I don't recommend this

Bought a medium weight vest but found there’s not much difference thickness wise between that and the maximum. Also I don’t like the crew neck, much prefer a scoop neck which doesn’t show under different necklines. The alternative lightweight vests are paper thin so a lot to think about!

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

10 March 2026Cats5
Verified Purchase

Warm and Cozy

Yes, I recommend this

Again very cosy top. I bought my late friends daughter two for Christmas and the tights as well as she is an artist working outside. I bought her the same last year and she loves them. So do I.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

10 March 2026Warwick1
Verified Purchase

Sooo comfy

Yes, I recommend this

Looks great under a lightweight jumper for early Spring when weather unpredictable. Lovely soft cream colour. Now have 3! Usually size 12, however always size up one size in thermals.

Reviewer Ratings

How did it fit?

A bit small

Helpful?

Reviewer Ratings

How did it fit?

A bit small

10 March 2026Joam jay
Verified Purchase

Poor quality

No, I don't recommend this

The material of this thermal top is poor quality, it snagged on the first wearing and bobbled. I went up a size for a good comfortable fit. Shan’t buy again very disappointed as usually can rely on M&S for quality

Reviewer Ratings

How did it fit?

A bit small

Helpful?

Reviewer Ratings

How did it fit?

A bit small

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