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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 this season with this pack of two thermal tops featuring a scoop neckline and long sleeves. Added stretch ensures a snug, flexible fit that's ideal for layering. Our Heatgen™ fabric is designed to retain heat and feels gloriously soft against your skin while keeping you warm.

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

Christmas delivery and collection last-order dates

Standard Delivery

Order by Saturday 20th of December

Nominated Day Delivery

Order by 5:00 PM on Tuesday 23rd of December

Store Collection

Order by 5:00 PM on Tuesday 23rd of December

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 (2195)

4.5

67% Recommended this product

Mentions
22 December 2025Susiegarden
Verified Purchase

Comfy, warm, great style

Yes, I recommend this

Great, bought for most of family forxmas as so practical and nice to wear

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

21 December 2025Thefrozennorth
Verified Purchase

Warm base layer

Yes, I recommend this

Bought as a base layer for extra warmth and it does the job. Quite long in body and sleeves. Would have preferred white but it wasn’t an option so bought the cream colour.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

21 December 2025JKH64L
Verified Purchase

Cosy warm

Lovely and warm nice fit too great item will definitely buy again

Helpful?

21 December 2025Mrs Tab
Verified Purchase

Perfect

No, I don't recommend this

Very comfortable and warm, thin so perfect as an undergarment and lets the skin breathe so no overheating. Highly recommended

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

21 December 2025Gerrie MK
Verified Purchase

Nice T-shirts, but zero thermal protection.

No, I don't recommend this

I had bought some thermal vests and tights in the shop and was so happy with them that I'd decided I'd wanted some long sleeves t-shirts as well. Unlike the previous thermal items, which are nice thick and very warm, These ones are very thin and do not give any added thermal protection than other normal T-shirts. I'll keep them, because as T-shirts they're nice with long enough sleeves and body for a 5'9" person. For warmth however I'm very disappointed in them.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

21 December 2025Aniwed 6547
Verified Purchase

Warm as toast!

Yes, I recommend this

Bought these as undergarments in the cold weather..... excellent

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

21 December 2025Jeclan48
Verified Purchase

Great tops

Yes, I recommend this

I had these in black for several years and was pleased to get them in navy. I like that they are thin so can be worn under all tops to help keep warm. Recommend going up a size. Nice and long too.

Reviewer Ratings

How did it fit?

A bit small

Helpful?

Reviewer Ratings

How did it fit?

A bit small

21 December 2025Loz 44
Verified Purchase

Thermal tops

Yes, I recommend this

When I first looked at them I thought. These aren't going to be warm. I put one on under a t shirt. And I was very warm all day to the point I had to roll the sleeves up. And yes I will order these again. They wash and dry. Quick.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

20 December 2025Gralex
Verified Purchase

Exactly what I needed.

Great little tops for layering in colder weather. Will buy again. Haven’t had the chance to wear similar leggings yet but hope they’re as good.

Helpful?

20 December 2025kippersmum
Verified Purchase

Warm and cosy

Yes, I recommend this

Two lovely tops, great fit and lovely and warm, would buy again.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

20 December 2025Morcs
Verified Purchase

Great Quality

Yes, I recommend this

Lovely & soft. Well fitting. I wear as a top. Really great quality material. Very comfortable

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

20 December 2025sparksareflying
Verified Purchase

Great quality

Yes, I recommend this

Very please with these thermal long sleeve tops. True to size and idea to keep you warm under your clothes. Brought several colours. Blue is a lovely colour. Maybe more colours M&S?.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

20 December 2025Keziah 1
Verified Purchase

Thermal long sleeve tops

Not quite as warm as I expected but I guess the price reflects.

Helpful?

20 December 2025Booklover37
Verified Purchase

Effective and quality top

Yes, I recommend this

A really useful and effective top. Thin enough to fit below jumper or blouse, and yet gives additional warmth. Such tops are daily wear for me in winter. I have had in cream (this time), navy, grey and red - so fine if small amount shows beneath sleeves. Good quality and wash well.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

20 December 2025Cazie2611
Verified Purchase

Great product

Yes, I recommend this

These thermal tops are fantastic. This is my 2nd purchase of them. They fit really well and are very comfortable to wear. I would recommend them to anyone as an extra warm layer.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

20 December 2025Hazey Fantasie
Verified Purchase

Good quality

Yes, I recommend this

So comfortable you don’t know you are wearing it, washes well and dries fast. Doesn’t look like a thermal vest.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

19 December 2025Budgepudney
Verified Purchase

Great quality

Yes, I recommend this

Bought for my elderly mum she loves them. They are stylish and soft. Keeps her cosy

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

19 December 2025JPhW
Verified Purchase

Perfect

Yes, I recommend this

Absolutely perfect for layering in Spring & Autumn

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

19 December 2025smartbright1982
Verified Purchase

Warm, stretchy and soft.

Yes, I recommend this

Very happy with these. Lovely and soft and stretchy. Ideally I'd like more in more colours please

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

18 December 2025Freckles56
Verified Purchase

Thermal Long Sleeve Tops

Yes, I recommend this

I have brought Heatgen thermal tops previously, I was a little surprised when these tops arrived because they were thinner than my previous tops. However they are brilliant, they are warm and work well under jumpers and other tops. I'm very happy with them

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

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