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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 £75, otherwise from £3.99

Reviews (1120)

4.8

81% Recommended this product

Mentions
22 October 2026Zookeeper mum
Verified Purchase

Good quality

Yes, I recommend this

Good quality garment. Good value. Couldn’t get size in all colours.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

22 October 2026SuperHarrygeorge
Verified Purchase

Warm and cosy thermal top

Yes, I recommend this

I have at least ten of these tops . All different colours and necklines . I wear them all through out the year if the weather is cool . Amazingly cosy . Washes well and keeps its shape . Great value .

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

19 October 2026clasperpenny
Verified Purchase

So cosy

These crew neck medium thermal vests are perfect. I am 5’2” tall and bought the extra small. Perfect. Fits very snuggly and so suitable for even a t shirt on top. Wish they made with turtle neck.

Helpful?

11 October 2026Barram
Verified Purchase

Warm baselayer

Yes, I recommend this

Really nice soft baselayer, keeps me toastie warm & comfortable when it's chilly & I out on a walk. The sleeves are slightly long but easy push them up abit

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

01 October 2026MiddleC
Verified Purchase

Lovely and warm

Yes, I recommend this

My first Heatgen top and I’m impressed! Bought to try as a layer after suffering in the cold last winter and I think this will be a big help.The basic shades are always useful but it would be nice to have a couple of brighter colours too.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

20 September 2026littleme638
Verified Purchase

Thermal crew top

Yes, I recommend this

Bought in readiness for the cooler days, primarily to wear under a pinafor. Its perfect. Close fitting , beautifully soft and very cosy to wear. Id definately recommend.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

19 September 2026Maw4
Verified Purchase

Warm!

Yes, I recommend this

Does what it says on the tin. Lovely and warm and soft fabric. Will be great for colder days.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

13 September 2026KazM61
Verified Purchase

Soft and Warm

Yes, I recommend this

Very pleased with my thermal top, it’s lovely and soft and warm, I have MS and dislike the cold, nighttime is worst for me in the winter so I actually use these thermals as pyjamas and it works really well.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

22 August 2026AMT220311
Verified Purchase

Perfect wardrobe staple

Yes, I recommend this

Bought as an autumn/winter basic. Great for layering but stylish enough to wear as a top. Lovely and soft. Can’t wait for cooler days to wear this.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

07 August 2026GayM
Verified Purchase

Nice warm too

Yes, I recommend this

Nice & warm top which will be great for colder days

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

18 June 2026Leizel
Verified Purchase

Great Quality

Yes, I recommend this

The Heatgen was really beautiful. Unfortunately it was not a boat neck as promised in the details. I have had several of these before and the necks of those were much lower. I wear these under most of my clothing and rely on them to not show. This item can only be worn when it's very cold and I'm wearing something which covers it up completely

Helpful?

09 June 2026Hewlands7
Verified Purchase

Great product!

Yes, I recommend this

Great product! Warm and cozy. Easy to wash and dry. Very snug fit…suggest get next size up!

Reviewer Ratings

How did it fit?

A bit small

Helpful?

Reviewer Ratings

How did it fit?

A bit small

31 May 2026ColetteF
Verified Purchase

Lovely cosy top

Yes, I recommend this

I love the feel and cosiness of these thermal tops, they are perfect for wearing in the house on cold days, but preferred the lower neck line of the previous ones I have

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

25 May 2026Ang989
Verified Purchase

Thermal wear top

Yes, I recommend this

Great product. Material lovely, soft and has some give to it. This product will keep you warm in the cooler weather. Do this product in three colours all of which are nice. Good price for a quality product.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

23 May 2026Szuan33
Verified Purchase

Cosy warm top.

Yes, I recommend this

Wonderful cosy warm top, perfect when the days have gone cooler, good length.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

22 May 2026barbaraanne
Verified Purchase

Love this top

Yes, I recommend this

I already have this lovely top in another colour. It is very comfortable, feels good on. Easily washed and dried.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

19 May 2026Jude1964
Verified Purchase

Lovely cosy fleece vest

Lovely thick warm cosy fabric, fits well, nice chocolate brown colour

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

15 May 2026110H
Verified Purchase

Good value

Yes, I recommend this

Bought it for physio sessions but also wear it under jumpers to keep me warm.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

13 May 2026Crumbsdad
Verified Purchase

Cosy layering top

Yes, I recommend this

Staple wear for wearing as layers. Wash well. Good colours. Come up very small.

Reviewer Ratings

How did it fit?

Small

Helpful?

Reviewer Ratings

How did it fit?

Small

11 May 2026bracknellbabe
Verified Purchase

Cruise wear

Yes, I recommend this

Bought to take on cruise to the Fjords as it seems to be layers is the thing to wear. Hopefully they fit the bill.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

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