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Heatgen™ Medium Thermal Long Sleeve Sparkle Top

Product code: T329300S

About this style

Add a touch of sparkle to your cold-weather must-haves with this thermal shirt from M&S Collection. The long-sleeved design features Heatgen Plus™ technology that provides effective insulation while maintaining a lightweight feel. A soft brushed lining offers superb comfort against the skin, while the improved stretch fabric ensures a comfortable fit that moves with you. The subtle sparkle detail makes this practical item more than just a basic thermal. M&S Collection: Easy-to-wear wardrobe staples that combine classic and contemporary styles.

M&S

Heatgen™ Medium Thermal Long Sleeve Sparkle Top

€22

Colour

Size

Matching items: Thermal Brushed Leggings
Free standard delivery over €75

Reviews (265)

4.7

71% Recommended this product

Mentions
14 March 2026Ginger 25

Cosey thermal

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Lovely cosey, dressy thermal top for colder nights out. Material is superb.

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 March 2026Ladybird08

You wouldn't know this is a thermal top!

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

I bought this top (with shiny flecks in) because it is warm and does not look like a thermal top! The material is smooth and not a traditional thermal look. It is really comfortable to wear and I love the scoop neckline. The sleeves are nice and long too.

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 March 2026HCGibbs

Cosy but stylish

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Pretty much a staple for me in the cold weather. I've bought 3 this winter in different colours. I like them as a base layer and the black one with sparkles jazzes up a simple outfit.

Reviewer Ratings

How do you feel about the size?

A bit small

Helpful?

Reviewer Ratings

How do you feel about the size?

A bit small

09 March 2026Mags2525

Warm and Glam

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

I love these black sparkle heatgen thermal tops They give me the warmth i need and the sparkle gives me the glam i crave They look good under any colour top , and so easy to care for

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 March 20265CHM00

Excellent

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

I absolutely love this thermal, its super warm , cosy to wear and pretty

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

28 February 2026Redshanks

Subtle Sparkle

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

I have a number of these thermal tops which I generally wear as a base layer. This one deserves to be seen more as it has a sparkly thread. I wouldn't wear it on it's own as it's clingy and reveals all lumps and bumps but I wear it under a low cut top and also under a sleeveless top so the sparkles can be seen. So it keeps me warm while adding more style and a bit of shimmer

Reviewer Ratings

How do you feel about the size?

A bit small

Helpful?

Reviewer Ratings

How do you feel about the size?

A bit small

27 February 2026Supermumsy

Nice warm winter top

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Lovely brushed finish inside, making this a warm top to wear. Fun sparkly finish, but it's a shame it comes in so few plain colour choices for everyday wear. How about adding in a lovely bright Christmassy red, holly leaf green, sunshine yellow, cornflower blue etc to widen the range ?

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

25 February 2026Muriele

Warm, smart and comfortable

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Love the warmth of this figure hugging sparkly top. Smart but also casual. Great quality too. I keep going back to buying this one, it is so comfortable.

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

24 February 2026Glammy17

Nice and Warm

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Great thermal top with a bit of a sparkle. I have this top in various colours and wear them all winter long. Great under cardigans and jumpers. Not see-through at all. Was very well. I size down in these as i like them fitted and they are stretchy.

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

22 February 2026Suzanna C

Excellent

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

A great comfortable and warm item, I have ordered more

Helpful?

17 February 2026JanBridge

Cosy and comfortable

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Fabulous and glittery - can wear as tee shirt and so warm under anything this cold weather!

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 February 2026Elaine 28

Good quality

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Really comfy warm have two now maybe make them in white

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 February 2026K7475

Sparkly thread - Sensitive skin

Originally posted on marksandspencer.com (UK)

The top fitted well but unfortunately the sparkly thread irritated my sensitive skin when I tried it on so I had to return

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 February 2026lirvaC

Disappointed

Originally posted on marksandspencer.com (UK)

No, I don't recommend this

I was very disappointed with this sparkle thermal top. It was far too long in the body and the sleeves and the material was quite rough. I given it one star and returned it.

Reviewer Ratings

How do you feel about the size?

Very large

Helpful?

Reviewer Ratings

How do you feel about the size?

Very large

26 January 2026JniB

Warm and sparkly!

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Love this - so warm and can be worn with a shorter sleeve and still look glam, a great buy!

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

22 January 2026Jbf3

Good quality for the price

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Bought this for cold weather to wear under my tops Does keep me warm

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

22 January 2026Ilovefauxfur

A hug in a top!

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Lovely substantial thermal. A hug in a top! Excellent quality.

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 January 2026ccpendaleberry

Thermal Sparkle

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Excellent bit of sparkle added to thermal top. It not only keeps me warm but is a very versatile garment to use under clothing or stand alone under a jacket and still looks good.Washes well too. Even though it’s got sparkle it is still soft to the touch.

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

18 January 2026Claire East Sussex

Very soft sparkles.

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Lovely soft top. I love the whole thermal range and wear them lots. I bought this for a night out with the girls to wear under a plain sleeveless jumper. The sparkles are quite subtle and it works perfectly.

Reviewer Ratings

How do you feel about the size?

A bit small

Helpful?

Reviewer Ratings

How do you feel about the size?

A bit small

18 January 2026Bunty0404

Neck abit low for me.

Originally posted on marksandspencer.com (UK)

Thought it would be a bit of bling under a jumper but neckline too low for me.Such a pity it was lovely

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

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