Update your browser for a better shopping experience!

Get faster load times, stronger security and access to all features.

M&S

2 Pack Heatgen™ Light Thermal Long Sleeve Tops

£28

Colour

Size

Also available in: Short Sleeve and Long Johns
Free standard delivery over £60

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.

Details & care

Style

Regular fit

Features

Heatgen™ technology

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

Composition

38% acrylic, 29% cotton, 29% viscose and 4% elastane (exclusive of trimmings), Ribbing - 39% acrylic, 30% cotton, 29% viscose and 2% elastane

Care

Wash at 40°C

Do not bleach

Tumble dry low temperature

Iron at medium temperature

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 (899)

4.6

68% Recommended this product

Mentions
04 February 2026Lel37
Verified Purchase

Perfect for keeping warm

Yes, I recommend this

Perchased for son who was going to America at the beginning of January. Fitted well and kept him warm in minus 10 degrees.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

04 February 2026WorkingMum1000
Verified Purchase

good quality and price

Yes, I recommend this

Bought these for my husband-add warmth at a good price

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

01 February 2026Chris C
Verified Purchase

Great item, good quality.

Yes, I recommend this

Great item, good quality & looks good. Easy click & collect. Really pleased. Thanks 😊

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

31 January 2026Kath CP
Verified Purchase

Don't be without them

Yes, I recommend this

Great to keep warm on the golf course, a pleasant walk

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

31 January 2026Nickyj1
Verified Purchase

Great quality

Yes, I recommend this

Nice soft material with a great fit, really warm perfect length

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

29 January 2026TFSX1
Verified Purchase

Good quality, good fit

Yes, I recommend this

Good quality, nice thin warm top, perfect for layering

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

28 January 2026Dol 123
Verified Purchase

Warm as toast

Lovely thermals, so warm and comfortable. Love them.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

26 January 2026Chrissie28
Verified Purchase

Warm T-shirt

Yes, I recommend this

Replacement for ones purchased last year. Good quality and wash well

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

26 January 2026Sidse
Verified Purchase

Nice & warm

Yes, I recommend this

Excellent fit, very comfortable and warm enough to wear as top around the house. Perfect as a base layer for outdoor use.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

24 January 2026I have a dog
Verified Purchase

Good purchase

Yes, I recommend this

Purchased these as could no longer get a similar Autograph product. Husband very happy as comfortable and soft to wear

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

24 January 2026HeatgenThermals
Verified Purchase

Mens Heatgen Light Thermals

These light weight thermals are great to wear under other layers, lovely comfortable fit. I have had previous versions of these for years and they still look and perform the same as new. Highly recommended.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

23 January 2026Steblfc
Verified Purchase

Thermal tops

Yes, I recommend this

Great quality and good value for money. I am pleased with the sizing and also quality of material.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

23 January 2026GSHgunner
Verified Purchase

Useful to wear to bed with.

Yes, I recommend this

I wear these specifically to go to bed with, just to add that little extra warmth with the long sleeves for colder weather, normally I would wear sleeveless vests, but with these are certainly more useful when it's colder, the fit and softness of the material are super comfy to wear with some added elasticity.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

22 January 2026fashionqueen1975
Verified Purchase

Excellent

My husband is really pleased with these thermal tops as they look more like t shirts and good choice colour too.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

22 January 2026Astorija
Verified Purchase

Great quality

Yes, I recommend this

I bought two thermal long-sleeve tops for my dad. They were a bit pricey, but the quality is really good. Thanks, M&S!

Helpful?

22 January 2026Ajwb
Verified Purchase

Keeping warm

Yes, I recommend this

Bought these for husband as spends a lot of time outdoors keeps him very warm in the cold weather very good value for money.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

21 January 2026wendyhwp
Verified Purchase

Lightweight winter warmth

Yes, I recommend this

I bought 6 of these for my elderly husband, who felt cold, but didn't like to wear a vest. They are light and breathable, yet warm and cosy, and now he wears them all the time!

Helpful?

21 January 2026Rosebud 2011
Verified Purchase

Fantastic thermals

Yes, I recommend this

Fantastic thermal top -fits well light and easy to wear and most importantly WARM

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

20 January 2026Thread
Verified Purchase

Great pyjama tops

Yes, I recommend this

My husband uses these as pyjama tops and he is very happy.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

19 January 2026Allylev
Verified Purchase

Good quality

Yes, I recommend this

Very good quality. Lightweight and warm. Washes well and tumble dries.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

1 of 150