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2pk Heatgen™ Thermal Short Sleeve Tops

Product code: T329208

About this style

These short-sleeved thermal tops keep you cosy as the temperature drops. Made from a luxuriously soft, stretchy fabric with innovative Heatgen™ technology, they trap body heat while remaining lightweight against your skin. The flattering scoop neckline adds a feminine touch, while the simple design makes them perfect for layering or wearing alone for light warmth throughout the day. M&S Collection: Easy-to-wear wardrobe staples that combine classic and contemporary styles.

Details & care

Style

Added Stretch

Features

Heatgen™ technology

lightweight and supersoft, designed to keep you warm when the weather gets chilly

Composition

57% acrylic, 38% viscose and 5% elastane (exclusive of trimmings)

Care

Wash at 40°C

Do not bleach

Do not tumble dry

Do not iron

Do not dry clean

M&S

2pk Heatgen™ Thermal Short Sleeve Tops

€23

Colour

Size

Matching items: Thermal Leggings
Free standard delivery over €75

Reviews (268)

4.7

75% Recommended this product

Mentions
06 May 2026Diamondgirl247

Excellent Quality

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

I have been buying heatgen tops and legging's, tights for over two years and they are really good quality and do keep you warm.

Reviewer Ratings

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

25 April 2026Superre1936

Excellent for both under and over wear.

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

These tops are excellent both as undergarments and T-shirts. They are comfortable and wash beautifully.

Reviewer Ratings

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

24 April 2026TWreview

Good product, not great value

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

The product itself is fine, right weight to wear under most tops. It's the fact that I have to buy 2 of the same colour and style! I really only need one and ideally one in cream and one in black. Or one short sleeved and one long sleeved. Please M&S make available as singles or in mixed colour / style packs.

Reviewer Ratings

How do you feel about the size?

A bit small

Helpful?

Reviewer Ratings

How do you feel about the size?

A bit small

14 April 2026Auntie81

Great purchase.

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Really pleased with these.They are very warm but not bulky.The fit is excellent.

Reviewer Ratings

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

09 April 2026Chocmonkey

Perfect tight fit

Originally posted on marksandspencer.com (UK)

Wish i could buy these for summer & in different colours and designs. V hard to buy tight fit t shirts that fit as nicely as these.

Reviewer Ratings

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

08 April 2026M69M

Great quality.

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

The tops are very soft. I like the length as well.

Reviewer Ratings

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

30 March 2026Lindylou241

Does what it says on the tin

Originally posted on marksandspencer.com (UK)

Great, lightweight fitted stretchy warm undergarment. Size 16 & got the large. Super!

Reviewer Ratings

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

28 March 2026Vespa16

Great quality and fit for purpose. Would recommend

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Bought for mother in law’s birthday. Fits well keeps her warm and cosy.

Reviewer Ratings

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

26 March 2026Joan104

Excellent T-shirt very warm good quality recommend

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Bought for the cold comfortable and warm I will buy some more when they come back in stock

Reviewer Ratings

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

22 March 2026slie

cosy

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

fab short sleeve great for spring with heatgen to keep cosy

Reviewer Ratings

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

21 March 2026cfos2703

Great lightweight TShirt.

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Lovely T shirts, I always size up a couple of sizes otherwise they’re skin tight. Lengthwise they’re perfect too as normal M&S T-shirts are not long enough. Wish they did them in Navy and Brown.

Reviewer Ratings

How do you feel about the size?

A bit large

Helpful?

Reviewer Ratings

How do you feel about the size?

A bit large

16 March 2026Goodtogo

Ready for spring

Originally posted on marksandspencer.com (UK)

Purchased for not so cold weather - may be Easter plus so not yet wearing

Helpful?

13 March 2026willow24

Poor quality

Originally posted on marksandspencer.com (UK)

No, I don't recommend this

These are very thin and cheap feeling, poor value for money so returned

Reviewer Ratings

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

10 March 2026Janelg

Lightweight vests

Originally posted on marksandspencer.com (UK)

Very lightweight vests. Thin so are not too bulky underneath clothing.

Helpful?

09 March 2026Jane Lulubee

Perfect

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Easy to wear, wash and dry. Easier to wear than long sleeves when it’s not freezing cold but chilly.

Reviewer Ratings

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

08 March 2026Eustacia

Superb

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

The perfect layer - feel so lovely on and just the right length so you never have to adjust.

Reviewer Ratings

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

07 March 2026Waydownsouth3

Good fit

Originally posted on marksandspencer.com (UK)

These thermal tops will be good under a blouse in in between seasons

Helpful?

07 March 2026Jan H D

Cosy

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Cosy and warm and a good inbetween top after a long sleeve thermal top

Reviewer Ratings

How do you feel about the size?

Large

Helpful?

Reviewer Ratings

How do you feel about the size?

Large

04 March 2026Kizo

Great value

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Very useful tops to layer up and keep you warm with out being in anyway bulky

Reviewer Ratings

How do you feel about the size?

A bit small

Helpful?

Reviewer Ratings

How do you feel about the size?

A bit small

01 March 2026lizziesue

Thermal T shirts ( double pack)

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

These thermal T shirts are great and so so warm under a jumper. Fits just right and they wash so easily and dries quickly Price too is excellent

Reviewer Ratings

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

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