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Heatgen™ Medium Short Sleeve Thermal Top

Product code: T329220

About this style

This super-soft thermal top is made with Heatgen Plus™ technology for extra warmth without bulk. The round neck and short sleeves create a comfortable base layer, while the brushed interior fabric adds cosiness. Made from material with added stretch for flexibility, this medium warmth top is ideal for chillier days. M&S Collection: Easy-to-wear wardrobe staples that combine classic and contemporary styles.

M&S

Heatgen™ Medium Short Sleeve Thermal Top

£14

Colour

Customers say:

Fits true to size()
Size

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

Reviews (202)

4.7

79% Recommended this product

Mentions
23 March 2026Kaz G
Verified Purchase

Great quality, fit and easy to wear

Yes, I recommend this

I adore the Heatgen range of tops & vests. This short sleeved black top has a lovely soft feel but not too warm to wear so perfect for those slightly cooler days. They fit snugly and are so comfortable to wear. Great with jeans, trousers or skirts!

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

21 March 2026C0ld teacher
Verified Purchase

Life-changing

Yes, I recommend this

I recently discovered the Heat-Gen thermal range and it has changed my life! As someone who is always cold, I used to wear tee-shirts under everything and at least three layers on top of that (jumper, gilet and coat!) But once I started wearing the thermal tops: (long sleeve - winter and short sleeve - spring), I have been snugly, and smugly warm ever since. Thank you.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

19 March 2026Eveli
Verified Purchase

Lovely thermal top

Yes, I recommend this

Lovely soft, comfortable thermal top that feels warm and good to wear under a jumper or even as a top with a cardigan.

Reviewer Ratings

How did it fit?

A bit small

Helpful?

Reviewer Ratings

How did it fit?

A bit small

16 March 2026Rachael Marie
Verified Purchase

Fantastic quality & fit

Yes, I recommend this

Love this undershirt. I wear as a pyjama top in the chillier months. Washed well.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

14 March 2026Veronica elf
Verified Purchase

Cosy T-shirt top

Yes, I recommend this

Lovely cosy top looks great too ! Love the colour

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

14 March 2026Huffleberen
Verified Purchase

Thermal top

Yes, I recommend this

Lovely, soft fabric. Very warm to wear under shirt Happy with purchase

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

13 March 2026A Allen
Verified Purchase

Medium thermal just right for me

Nice material lovely and warm got with 20% off sorry I didn't order more when I had the 20% off

Reviewer Ratings

How did it fit?

Small

Helpful?

Reviewer Ratings

How did it fit?

Small

11 March 2026GNB
Verified Purchase

Great quality

Yes, I recommend this

Beautifully soft, warm and comfortable fitting. Would definitely recommend this.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

11 March 2026mskbakes
Verified Purchase

Great thermal T-shirt

Yes, I recommend this

I wish they’d do these in more colours. So cosy & great to have a crew neck rather than the scoop of the long sleeve version.

Reviewer Ratings

How did it fit?

A bit small

Helpful?

Reviewer Ratings

How did it fit?

A bit small

10 March 2026Katsa
Verified Purchase

Great looking t shirt

Yes, I recommend this

Sits very well under cardigans or sweaters. Very soft and warm, snug fitting.

Reviewer Ratings

How did it fit?

A bit small

Helpful?

Reviewer Ratings

How did it fit?

A bit small

10 March 2026GKCL1
Verified Purchase

Great thermal/ski gear from M&S

Yes, I recommend this

The thermal range is great for home and away. I have now had to buy for my daughter who lives in the French alps and who is recommending to all her friends and colleagues there!

Reviewer Ratings

How did it fit?

Small

Helpful?

Reviewer Ratings

How did it fit?

Small

09 March 2026Morrowj
Verified Purchase

Cosy

Yes, I recommend this

Ideal for very cold weather and snow. Great cosy layer.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

06 March 2026Vic1973
Verified Purchase

Purchased for my elderly mother

Yes, I recommend this

My mother has numerous tops in various colours, she find them comfortable and they keep her warm. If she goes out it is a base layer or she wears them under a cardigan at home. Good quality, wash well, highly recommend.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

04 March 2026Couple2
Verified Purchase

Great fitting, warm base layer or top

Yes, I recommend this

Warm, good fit, nice colour, perfect for layering under jumpers when you don't want long sleeved vests but still need a thermal base.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

04 March 2026Vix54321
Verified Purchase

Love

Yes, I recommend this

Love the thermal range. More colours next year please.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

02 March 2026Bea1306
Verified Purchase

Comfortable and warm

Yes, I recommend this

Comfortable and warm - quite a thick material - nice neckline

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

01 March 2026gorrie
Verified Purchase

Very warm top!

Yes, I recommend this

I sent up one size for this top.. Very glad I did as my ordinary size would have been a bit tight. Having said that it is a very warm top and I shall save it for a very cold day!

Reviewer Ratings

How did it fit?

A bit large

Helpful?

Reviewer Ratings

How did it fit?

A bit large

01 March 2026Ladywirral
Verified Purchase

Great warmth

Yes, I recommend this

I already have the fabulous long sleeved thermal and this gives me an alternative when wearing tight-sleeved sweaters. I just wish the neckline was lower so it didn’t show

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

28 February 2026Museum4fun
Verified Purchase

Warm Vest

Nice warm vest which could be used as a top without covering. A bit snug.

Reviewer Ratings

How did it fit?

A bit small

Helpful?

Reviewer Ratings

How did it fit?

A bit small

25 February 2026Marine mummy
Verified Purchase

Good quality thermals

Yes, I recommend this

A nice and cosy thermal top. Got it on a sparks offer so a good price.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

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