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M&S

Heatgen™ Medium Thermal Short Sleeve Top

£18

Colour

Size

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

Product code: T148812N

About this style

A reliable staple for colder days, this thermal vest offers practical warmth for everyday wear. The regular fit provides a comfortable silhouette, while the short sleeves add versatility to your layering options. Made from an insulating brushed back fabric, our Heatgen™ technology helps generate and retain body heat while maintaining breathability. M&S Collection: Easy-to-wear wardrobe staples that combine classic and contemporary styles.

Medium warmth for wrapping up in moderately cold conditions.

Details & care

Style

Regular fit

Features

Thermal

Soft and cosy brushed fabric that keeps warmth in

Heatgen™ technology

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

Composition

50% cotton, 26% polyester and 24% viscose (exclusive of trimmings)

Care

Wash at 40°C

Do not bleach

Tumble dry medium 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 (676)

4.8

72% Recommended this product

Mentions
04 January 2026Rita6475
Verified Purchase

Great quality Thermal top

Bought as a gift for a friend and he loved this thermal top. He's very old and really feels the cold but says this keeps him nice and warm.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

02 January 2026AnnieCee
Verified Purchase

Just what was wanted

Yes, I recommend this

Just what was wanted and exactly as described. Very pleased with these. Bought a large rather than a medium size as my husband sometimes finds sleeves - even short ones - awkward sometimes. Also glad I chose the medium thermal weight. I bought a couple even though they don't come in a penny saving package of 2 as do the lighter ones - but they were definitely the right choice for warmth and lack of bulk under other tops. They wash well and dry quickly. So all in all, husband and I both happy with these purchases.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

30 December 2025Behlul
Verified Purchase

Great quality

Yes, I recommend this

Greet quality very soft and so comfy. Overall soft

Helpful?

29 December 2025Gee12345
Verified Purchase

Thermal Vest

Yes, I recommend this

My husbands favourite because they fit so well and the length is good

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

27 December 2025Spirit3
Verified Purchase

Great fit and Quality

Yes, I recommend this

Worth the money and the quality is better would buy again

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

26 December 2025Mindymo
Verified Purchase

Great Fit

Yes, I recommend this

These are great, my husband wears them under a zip neck sweater.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

26 December 2025Jessdina
Verified Purchase

Great top.

Yes, I recommend this

A lovely warm top. Bought for my adult son when out cycling. He also has 2 white ones and says they wash well and the warmth is just right.

Helpful?

16 December 2025Gift for someone
Verified Purchase

Mens vests

Yes, I recommend this

Unsure if the quality has been down graded they feel a bit thinner than usual

Helpful?

09 December 2025Merie29
Verified Purchase

Great quality

Perfect quality and true to size. Would recommend.

Helpful?

09 December 2025Rock246
Verified Purchase

Nice and warm

My husband finds them very useful, but do not tumble dry, I have in the past and they definitely shrink !!!

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

09 December 2025Glyn73
Verified Purchase

Great quality at a great price. Thanks M&S!!

Yes, I recommend this

Excellent quality at a good price. M&S rarely disappoints and hasn’t with this product

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

06 December 2025Lisa BF
Verified Purchase

Husband very happy

Yes, I recommend this

Good quality, husband loves it, keeps him nice and warm

Helpful?

06 December 2025Edief
Verified Purchase

Quality vest

Yes, I recommend this

Bought a 2 pack of grey short sleeved vests for the hubby, adds extra warmth without being bulky under his shirts. Washed and reshaped well too.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

02 December 2025JayDoubleyou
Verified Purchase

Great tops

I bought 2 of these tops last year and have just received 2 more. They are great. A good length to both the body and sleeves. I highly recommend them.

Helpful?

28 November 2025Phil 6
Verified Purchase

Nice item

The first thermal top I've bought in a long while: went for "medium thermal". Nice product, fits very well, certainly warmer than a cotton top, but perhaps not quite as warm as I had hoped. Currently thinking about going for a maximum thermal, but wish Heatgen did a wider range of colours in the maximum category.

Reviewer Ratings

Comfort

Good

Helpful?

Reviewer Ratings

Comfort

Good

26 November 202581fab
Verified Purchase

Well made

Yes, I recommend this

Ideal for cooler weather comfortable and fits well

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

25 November 2025YWS16
Verified Purchase

Soft and warm

Yes, I recommend this

These thermal vests wash well and are lovely and warm. The vests are a good length and a good fit.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

25 November 2025TrionaL
Verified Purchase

Lovely warm thermal top, will definitely buy more.

Originally posted on marksandspencer.ie

Yes, I recommend this

Bought this for my partner as he works outside and needed a warm top, he loves it he says it’s very good quality and warm will definitely purchase another one.

Helpful?

25 November 2025Woody24
Verified Purchase

Great, cosy thermal.

Yes, I recommend this

Great thermal vest/t shirt. Been buying these for my partner for years and they seem to last forever. He has rheumatoid arthritis so needs to keep his joints snug and these work a treat even in the slightly in-between times of the year. Bought two to finally replace the "tired" ones and will buy more.

Helpful?

19 November 2025g2vv
Verified Purchase

Warm

Yes, I recommend this

Medium warmth . Useful when it’s above freezing . Washes well

Helpful?

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