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Heatgen™ Medium Thermal Strappy Vest

Product code: T329209

About this style

Stay snug in this Heatgen™ Medium thermal vest from M&S Collection. The fabric is engineered to trap warmth without adding bulk, while the brushed interior ensures comfort against your skin. Its sleek strappy camisole design offers a light layer that moves with you, enhanced with added stretch for flexibility and all-day ease. The medium warmth rating provides reliable insulation when temperatures drop. M&S Collection: Easy-to-wear wardrobe staples that combine classic and contemporary styles.

M&S

Heatgen™ Medium Thermal Strappy Vest

€16

Colour

Size

Free standard delivery over €75, otherwise €4.50

Reviews (678)

4.7

77% Recommended this product

Mentions
14 October 2026Normandy Lady

Very good fit soft and keeps me warm

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Very very soft comfortable and looks great very pleased with my purchase

Reviewer Ratings

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

10 October 202612PJW

Look good

Originally posted on marksandspencer.com (UK)

I needed a thermal undertop for the colder weather and thought I would try this camisole. The quality looks good and the brushed back should keep me warm. Not tested or washed yet hence 4 stars.

Reviewer Ratings

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

07 October 2026Sheenacart

Cosy

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

I work in a very cold atmosphere. I can wear this under my uniform without it impinging on my job and hopefully keep me warmer at the same time

Helpful?

02 October 2026PageT100

Lovely warm and soft vest

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Lovely soft well fitted vest top bought to wear under tops on chiller days. Love the long sleeved thermal tops so hoping this will be a nice alternative.

Reviewer Ratings

How do you feel about the size?

A bit large

Helpful?

Reviewer Ratings

How do you feel about the size?

A bit large

29 September 2026FloraFashionExplorer

Soft fabric, good layering piece.

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Bought to try as an alternative to my usual cult layering staples from another brand. I really like the soft fabric, and it's opaque enough to provide coverage when worn under a fine knit. The colour (brown) is a good tone. The weather hasn't quite been cold enough to speak to its Heatgen properties. Could this become a new staple? I might buy more...

Reviewer Ratings

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

17 September 2026Lambourne20

Not yet witn

Originally posted on marksandspencer.com (UK)

For once something that is a decent length. I bought 3 non thermal vests and returned them due to short length. I haven’t worn this yet but tried it on and at least it is long enough.

Reviewer Ratings

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

30 August 2026Nickymj

Great Thermal vest

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

These are very nice thermal vests. Will be great in Winter. They are quite long in the body. However I do prefer having the length to having a short cropped top, especially for the colder months. The long length may be a surprise to others. So far top has washed well and so far good value.

Reviewer Ratings

How do you feel about the size?

A bit large

Helpful?

Reviewer Ratings

How do you feel about the size?

A bit large

30 June 2026DJF49

Great for all seasons

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Versatile, soft & comfortable to wear. Wash well. Wear all the year round.

Reviewer Ratings

How do you feel about the size?

Small

Helpful?

Reviewer Ratings

How do you feel about the size?

Small

19 June 2026Susievs

Heatgen medium thermal strappy vest

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Brought these as an investment for the winter months when they come in extremely handy

Reviewer Ratings

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

12 June 2026Moker48

Perfect strappy top.

Originally posted on marksandspencer.com (UK)

Being a lover of M & S long sleeved thermals I thought this was worth trying to wear under summer wear when not too warm. Excellent fit and cosy!

Helpful?

10 June 2026Skipper41

Nice vest top

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Great vest , bought it to go under my brown lace blouse Fits great

Reviewer Ratings

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

09 June 2026Northeasterly

Useful warmth for blouses.

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Very useful vest which adds a fair amount of warmth to summery blouses in spring. Would have preferred a shorter length.

Reviewer Ratings

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

30 May 2026Nina2019

Light and soft thermal

Originally posted on marksandspencer.com (UK)

Lovely thermal, versatile and soft. It keeps you warm without feeling heavy. Bright colour. Good value.

Reviewer Ratings

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

23 May 2026Manxy1

Cream thermal vest

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

I’ve got loads of M&S thermal tops. In UK it’s still a bit chilly even in summer months. I bought these strappy vest thermals to wear as a light layer under my clothes. I’m a 10/12 on top half. I bought the size 12 as I didn’t want it too clingy.

Reviewer Ratings

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

19 May 2026Sue from Gloucestershire

very useful for under crochet tops, shirts

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

very soft very comfortable for under crochet tops and shirts and of course as just a top when the sun arrives

Reviewer Ratings

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

16 May 2026Paul Roland

Nice and soft

Originally posted on marksandspencer.com (UK)

Nice warm material to go under tops when you feel you need just that little bit more on those in-between days.

Reviewer Ratings

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

15 May 2026Ellen84

Vest top

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Brought for general use each day really comfortable

Reviewer Ratings

How do you feel about the size?

A bit large

Helpful?

Reviewer Ratings

How do you feel about the size?

A bit large

09 May 2026SuzieQ71

Soft, Warm, Thick and good quality

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Excellent soft and warm thermal vest, long enough for me as I am tall. The best thermal vest I have every bought.

Reviewer Ratings

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

06 May 2026Minnie19

Good value

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

I bought the cream top online after reading such good reviews . I bought it to wear under the cream crochet jacket . It’s just what I wanted warm and cosy to wear and at a good price .

Reviewer Ratings

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

01 May 2026Holley20

Comfortable vest

Originally posted on marksandspencer.com (UK)

Comfortable warm top for under thicker jumpers. Medium fitted nicely for me as a 14

Helpful?

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