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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

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.

Details & care

Features

Heatgen™ technology

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

Composition

66% acrylic, 28% viscose and 6% elastane (exclusive of trimmings)

Care

Wash at 40°C

Do not bleach

Do not tumble dry

Do not iron

Do not dry clean

Delivery, collection & returns

Delivery

Standard

UK Standard Delivery is available for £3.99 or free on orders over £60 (excluding furniture).

Nominated Day

UK Next Day Delivery and UK Nominated Day Delivery (excluding Northern Ireland) are available for £5.99 (excluding furniture)

Collection

Collect from store

Store collection is free on all fashion, home and beauty orders.

Returns

UK returns

Free

Exclusions apply

Full delivery and collection informationOur returns policy

Reviews (2298)

4.5

68% Recommended this product

Mentions
27 January 2026ARetiredGoldenGirl
Verified Purchase

Warm and good quality

Yes, I recommend this

I bought these for extra warmth during this cold spell and I have not been disappointed.

Reviewer Ratings

How did it fit?

A bit small

Helpful?

Reviewer Ratings

How did it fit?

A bit small

27 January 2026Dummer
Verified Purchase

Lightweight thermal tops

There vests are a nice shade of blue, the right length but not for really cold weather. The warmth is mid range so if you’re a very chilly person buy a thicker version.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

27 January 2026Carole066
Verified Purchase

Great quality as always with M&S

Love these thermal lightweight tops, worth the money, as all M&S products last for years

Helpful?

27 January 2026handbagsgalore123
Verified Purchase

Comfy.

Yes, I recommend this

I have bought at least 4 packs of these over the years. Great for wearing under wool and cashmere sweaters. Only negstive is the length of the tops - could be 2 inches shorter and they would be perfect (I'm very much a regular body length) as there is a lot to tuck in and the nature of the fabric means they tend to roll up!

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

26 January 2026Step92
Verified Purchase

Winter warmer

Yes, I recommend this

Good fit, warm and snug. Thin enough to wear under anything.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

26 January 2026Berbizier
Verified Purchase

Comfortable

Yes, I recommend this

A very nice replacement for my old thermal tops. Fit is good, true to size.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

26 January 2026PollyStar2
Verified Purchase

Great fit

Yes, I recommend this

Excellent fit and warm, I have several and this years is the best so far.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

26 January 2026Turmoil2
Verified Purchase

So useful

Yes, I recommend this

Very useful layering piece fits well and washes well.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

25 January 2026Bluesky44
Verified Purchase

Material Too Thin

I was looking to purchase thermal tops that I had purchased last year for my daughter. I thought these were the same but I was disappointed when the arrived as they were very thin and see through! Returned for the brushed crew neck long sleeved tops which were so much nicer and very cosy.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

24 January 2026HomeGirl2255
Verified Purchase

excellent value

Yes, I recommend this

a perfect garment to wear under jumpers and dresses at this time of year. Well made and good value

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

24 January 2026tg53
Verified Purchase

Perfect answer to the cold spell

Yes, I recommend this

With the prolonged cold spell I needed an extra layer to stay warm. I wanted something that fitted neatly under my top layer, no seams showing and definitely not bulky. This vest fits the bill perfectly. It is lightweight but makes all the difference to feeling warm. Perfect!

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

24 January 2026Jeniwin
Verified Purchase

Winter warmers

Yes, I recommend this

Could only get the grape colour however, no problem still cosy and very comfortable

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

24 January 2026BT57
Verified Purchase

Two pk thermal vest

Originally posted on marksandspencer.ie

Lightweight and comfortable to wear . Great length

Helpful?

23 January 2026Aqua29
Verified Purchase

Keeping warm

Yes, I recommend this

Definitely made me feel warmer. Snug fit but comfortable.

Reviewer Ratings

How did it fit?

A bit small

Helpful?

Reviewer Ratings

How did it fit?

A bit small

23 January 2026Cant find a free nickname
Verified Purchase

Great garment

Yes, I recommend this

Perfect. Warm and cosy but not bulky. Will buy again

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

22 January 20269livescat
Verified Purchase

Very good quality

These are excellent, they are like a second skin and keep you warm without the bulk. Would highly recommend

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

22 January 2026SE73
Verified Purchase

Would recommend

Yes, I recommend this

Soft, comfortable, neck line not too high. Could size down for a snugger fit.

Reviewer Ratings

How did it fit?

A bit large

Helpful?

Reviewer Ratings

How did it fit?

A bit large

21 January 2026chick48
Verified Purchase

Thermal Top

Yes, I recommend this

I purchase the thermal tops as a must for cold days. They are of a fine texture which is easy to wear under a jumper or shirt it gives a cosy feel to winter days.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

21 January 2026monetmonkey
Verified Purchase

Great for Fibromyalgia and Excema Sufferer!

Yes, I recommend this

I suffer from Fibromyalgia and wanted to test whether the long sleeves would feel to tight and constricting but luckily they were fine. The material is importantly lightweight but also gorgeously smooth, especially great for a severe excema sufferer.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

21 January 2026MEW10
Verified Purchase

Light and comfortable to wear

Yes, I recommend this

These tops are soft, comfortable and warm. Great for layering and not restrictive. Great value

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

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