Update your browser for a better shopping experience!

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

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 (682)

4.8

72% Recommended this product

Mentions
17 January 2026Johng54
Verified Purchase

Comfortable and warm, good quality

Very comfortable and warm. I particular like the length as many tops are just too short for me.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

16 January 2026Linen123
Verified Purchase

Lovely warm winter layer

Yes, I recommend this

The heatgen t-shirt is great for extra warmth. It is good quality abd washes w

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

16 January 2026kay1943
Verified Purchase

Good quality, very satisfactory

Yes, I recommend this

Delighted that they are long enough for a 6'3" man. Cosy and effectuve

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

14 January 2026ishappyshopper
Verified Purchase

Good quality thermal top

Yes, I recommend this

These are nice and soft and warm wash well and keep there colour will buy more when needed

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

12 January 2026Quiray
Verified Purchase

End user is happy with the product

Yes, I recommend this

Online purchase so a bit nervous if size and fit are perfect. Relieved to hear that end user is happy with the product.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

12 January 2026Peter Russell
Verified Purchase

Incomparable

Yes, I recommend this

I’m very happy with the vest. It has been a godsend in this weather. No one else can compare.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

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?

1 of 114