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Heatgen™ Medium Thermal Short Sleeve Top

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.

M&S

Heatgen™ Medium Thermal Short Sleeve Top

€23

Colour

Size

Also available in: Long Johns and Long Sleeve
Free standard delivery over €75

Reviews (693)

4.8

73% Recommended this product

Mentions
22 March 2026MALEMSMATE

Great quality and fit

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Had to replace 2 much older thermals that were beginning to go grey

Helpful?

15 March 2026Slimmer lady

Great fit.

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Great fit, goes nicely under a shirt without being seen and keeps you warm.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

02 March 2026Linden Ruth

Ideal for cold person! He has stopped complaining.

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Bought for warmth and comfort and it’s worked! Great.?

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

28 February 2026Askgran

Warm Husbanf

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Husband loves these vest so warm & comfortable for me they are easy to wash

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

03 February 2026Tell 82

Warm.

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

A good fit and extra warmth, expensive but good quality, not available in my local M+S though.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

30 January 2026CH141

Long fit

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Great quality and long fit, kees your back warm

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

28 January 2026Julia Jay

Good buy

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Good quality, warm thermal tops. They have a ribbed texture and are quite thick. Very comfortable to wear. Good fit.

Helpful?

26 January 2026SummerSprite

Well recived gift

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Bought as a gift for a man who likes a little colour in his clothing . He loved the burgundy colour and appreciated the warmth the thermal gave, so much so he bought himself another!

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

26 January 2026MarkJ67

Good

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

It has washed well and is a nice fit, plus it has been delivered which is a great help.

Reviewer Ratings

Comfort

Good

Helpful?

Reviewer Ratings

Comfort

Good

24 January 2026BWC

A quality warm base layer

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

True to size and good quality. Washes well. Warm, soft base layer

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

23 January 2026Foxy52lady

Excellent

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Good quality material very soft and comfortable to wear good value for money

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

23 January 2026Beachbabe1916

Mans thermal vest.

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Good quality thermal vest and lovely colour but expensive considering you have to pay delivery charge,no click and collect.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

22 January 2026Gillfranw7

A warm and comfy vest T-shirt.

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

This is the third thermal vest my husband has ordered. Comfy and warm. It is a pity this item wasn't eligible to click and collect in store as this would have saved us delivery costs.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

21 January 2026Readyteddy

Great quality.

Originally posted on marksandspencer.com (UK)

Good quality clothing, good fit and cosy. Good length.

Helpful?

19 January 2026Mavis Rozzer

such soft touch, wonderful

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

love these (bought 2) so very soft to the skin. think he will wear these at every opportunity.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

17 January 2026Johng54

Comfortable and warm, good quality

Originally posted on marksandspencer.com (UK)

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

Lovely warm winter layer

Originally posted on marksandspencer.com (UK)

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

Good quality, very satisfactory

Originally posted on marksandspencer.com (UK)

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

Good quality thermal top

Originally posted on marksandspencer.com (UK)

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

End user is happy with the product

Originally posted on marksandspencer.com (UK)

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

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