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2pk Heatgen™ Thermal Long Sleeve Tops

Product code: T329101

About this style

Beat the chill with these Heatgen™ thermal shirt tops. Made with our innovative heat-retaining fabric that feels gloriously soft against your skin, they feature a scoop neckline and long sleeves. The added stretch ensures a snug, flexible fit that's perfect for layering as a baselayer, while the light warmth rating provides just the right level of cosiness. Comes in a convenient pack of two. M&S Collection: Easy-to-wear wardrobe staples that combine classic and contemporary styles.

M&S

2pk Heatgen™ Thermal Long Sleeve Tops

£25

Colour

Customers say:

Fits true to size()
Size

Matching items: Thermal Leggings
Free standard delivery over £60

Reviews (2421)

4.5

68% Recommended this product

Mentions
19 March 2026Digill
Verified Purchase

Excellent quality .

Great good layering piece washes wrll . Good under blouses not too thick

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

19 March 2026Nickyg73
Verified Purchase

Lovely for layering

Yes, I recommend this

These light thermal tops are great for layering with a dress or under a jumper.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

18 March 2026Pam2Ao
Verified Purchase

Poor quality control

No, I don't recommend this

The reason I gave only one star is due to the total lack of care or quality control in the packaging. There was only one top in a 2 pack item; the one I did receive was scrunched up and had been stuffed into the packaging which was torn. Although the top itself is good, I would think twice about ordering anything from M&S online again, especially as I have noticed other reviewers saying something similar about the packing having ordered other clothing items.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

18 March 2026Seahorse23
Verified Purchase

Great for Winter to Spring time

Yes, I recommend this

Love these thinner thermal tops. Just right for the temperature changes in Spring and Autumn. I have the light blue ones and look great under a cardigan too.

Helpful?

16 March 2026JLO20
Verified Purchase

I love M&S

I love these tops and wear them all through the winter under jumpers or cardigans. I have them in all dufferent colours and wouldn't be without them

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

15 March 2026Shah123
Verified Purchase

Good basics to have

Great thermal. Thin but works well. Only thing I would say it’s very long

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

14 March 2026MagentaAli
Verified Purchase

Warm and comfortable

Yes, I recommend this

I've bought lots of these long sleeved heatgen tops over recent years. I wear one every day during the colder months and they really do make me feel much warmer even though they're quite thin.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

14 March 2026NJT11510
Verified Purchase

Comfortable, soft and well-fitting

Comfortable, soft and well-fitting. And great value.

Helpful?

14 March 2026BeedeBee
Verified Purchase

Great quality tops

Yes, I recommend this

Really useful tops for layering. Have bought before and will do again.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

13 March 2026Datar
Verified Purchase

Standard lightweight warmth

These thermals are for me not too bulky. Always buy when in sale or sparks offers, so very good value. Just wish white ones were in stock online.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

12 March 2026Driftwoodstyler
Verified Purchase

Snug and warm

Yes, I recommend this

I bought these in black a few years ago and I'd say the ones I bought this time are a little smaller. Great length though.

Reviewer Ratings

How did it fit?

A bit small

Helpful?

Reviewer Ratings

How did it fit?

A bit small

12 March 2026Cathie46
Verified Purchase

Excellent

Yes, I recommend this

Love the tops, they do exactly what they are meant to do. They are a good fit and comfortable to wear, plus I don't need to wear a bulky sweater on top now, perfect for this time of year. I would definitely recommend them.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

12 March 2026Belindac1
Verified Purchase

Warm & cosy

Yes, I recommend this

Warm & cosy but not bulky so perfect to wear under ski gear or even normal clothes!

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

11 March 2026DizztheWiz
Verified Purchase

SUPER COSY THERMAL LONG SLEEVE TOPS

Yes, I recommend this

I love these tops. They are an ideal weight for layering on colder days. The fit is really good. They provide a degree of warmth without being overwhelming. The price was very good. They wash well too.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

11 March 2026GJDB
Verified Purchase

Super warm tops I wear them 6 months of the year

Yes, I recommend this

Great under wear super warm and cozy. I live in them. Jumpers or cardigans on top Perfect

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

10 March 2026Cats5
Verified Purchase

Great cozy top

Yes, I recommend this

Lovely Warm top I've been wearing it to bed instead of my pjs top, so glad I bought two of them.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

10 March 2026Newproudgranma
Verified Purchase

Great base layer for the winter months.

Yes, I recommend this

I love these tops. I wear them under my jumpers all winter. They are so soft and very comfortable. They wash well and keep their shape, no shrinkage.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

10 March 2026Luna42
Verified Purchase

Really good thermal layer

Yes, I recommend this

Lovely light material that’s good for layering - wash’s well

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

09 March 2026Sheilas70
Verified Purchase

Great base layer

Yes, I recommend this

These tops are a really good base layer to keep warm on the the colder days.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

09 March 2026Kris2B
Verified Purchase

A great but for winter!

Yes, I recommend this

I have been buying these tops for years and wear them ( in different colours) all through the winter. I much prefer these unlined ones, as they are a better fit under clothes. I just wish there was still a wider choice of colours.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

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