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2 Pack Heatgen™ Light Thermal Long Sleeve Tops

Product code: T149482

About this style

These lightweight thermal tops balance warmth with everyday comfort. Cut to a regular fit, our Heatgen™ technology provides warmth for cooler days, making them ideal as a base layer. The long sleeve design with Flexifit™ technology allows for ease of movement while preserving the garment's clean lines. Soft seams and heat-sealed labels add comfort against the skin. The moisture-wicking fabric ensures day-long freshness, perfect for layering under your favourite white or black shirts. M&S Collection: Easy-to-wear wardrobe staples that combine classic and contemporary styles.

Light warmth for cooler conditions and everyday comfort.

M&S

2 Pack Heatgen™ Light Thermal Long Sleeve Tops

€36

Colour

Size

Also available in: Long Johns and Short Sleeve
Free standard delivery over €75, otherwise €4.50

Reviews (934)

4.6

68% Recommended this product

Mentions
28 October 2026Ashmore

Great basic

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

I love these tops as they are so cosy, great to wear on their own as a t shirt or as a layer under shirt or jumper. I have several purchased over the years and this denim colour is a useful addition. They wash beautifully. A great buy.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

26 October 2026notforyoutoknow

Good length, comfortable and warm

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

It is a good fit as it is long enough for me, is comfortable and does a good job keeping me warm.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

15 October 2026Brownie001

Light Thermal Vest

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Nice & light thermal for those who want to stay warm but not too hot. Not bulky under clothes.

Helpful?

11 October 2026

Light terminal top

Great thermal light and comfortable and warm without light good value would like to see more navy colours. Tom

Helpful?

08 October 2026JanoJayJay

Lightweight soft and comfortable

Originally posted on marksandspencer.com (UK)

Fabulous long lightweight thermal vests , soft comfy material and lovely colour

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

07 October 2026BroganB

Good quality

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Bought these before and they are lightweight and comfortable

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

06 October 2026Sbaug

Really pleased with this product.

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Well made and comfortable. Fabric strong and dark grey.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

18 September 2026highlander520

Autumn is acoming

Originally posted on marksandspencer.com (UK)

Husband likes these has bought for years in all colours

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

08 September 2026RaphaelH and

Great product. Comfortable to wear!

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

I have bought these before but needed some more as I was travelling. They are soft on my skin that is very sensitive!

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

09 August 2026Sindy64

Thermol tops

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

I havent tried them on yet as weather is toooo!!!! warm to be trying winter items on but on first appearance they feel good qaulity and have washed well.

Helpful?

08 July 2026Busybee 22

To help take the chill away!

Originally posted on marksandspencer.com (UK)

Bought for a gift for someone who permanently feels cold so hope they will act as a denim blue tee to be worn under a shirt.

Helpful?

04 July 2026mjsimmons09

10 out of 10

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

For spring/autumn days, this is just the right thickness of under garment which keeps you very comfortable, not too hot & not too cold, perfect in fact & lovely feeling fabric too.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

03 July 2026Honey001

Good quality.

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Bought these for my son as he loves them, warm but not too thick. They are a good length and wash really well.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

02 July 2026Mariava

Great quality

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Great quality. Wash well. This is a repeat purchase. Also good value for money.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

22 June 2026Joan the boan

Great design

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

I bought these for my husband who likes the soft material and colour. He wore this top under a suit for an event and it looked very cool.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

29 May 2026Awesome3

Warm and comfy

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Bought for my elderly dad. He’s happy with them as they keep the heat in and the cold out.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

26 May 2026Tonka142

Warm and cosy so I am told! Light to pack.

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Warm and comfortable, easy wash and quick to dry as well.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

09 May 2026Vespertine

Excellent alternative to heavy winter thermals.

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Husband needed a lighter, long sleeved vest to wear during the months leading up to summer. These vest are so comfortable, and the silky fabric gives ease of wear under shirts and jumpers. Very happy with these vests. Good value as well.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

24 April 2026Jacquie 2

Superb comfort

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

My husband says these are the best he can buy,superb comfort

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

21 April 2026Sissy55

A good fit

Originally posted on marksandspencer.com (UK)

Bought for my husband, who is happy with the fit. Unable to test them until later in the year when we go skiing.

Helpful?

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