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M&S

Heatgen™ Thermal Long Sleeve Shaping Body

£25

Colour

Customers say:

Fits true to size()
Size

Free standard delivery over £60

Product code: T329105

About this style

Sculpt your figure with this Heatgen™ Thermal Long Sleeve Shaping Bodysuit. The soft, brushed fabric offers light control for a streamlined silhouette, while the flattering long sleeves and high turtle neck add warmth and style. Made with innovative Heatgen™ thermal technology, this effective shaper provides lightweight warmth on chillier days without adding bulk. M&S Collection: Easy-to-wear wardrobe staples that combine classic and contemporary styles.

Details & care

Item details

Model Height: 5ft9"/176cm

Model is wearing size: 12

Style

Control: Light control

Features

Heatgen™ technology

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

Composition

45% acrylic, 30% viscose, 19% polyamide and 6% elastane (exclusive of trimmings)

Care

Wash at 40°C

Do not bleach

Do not tumble dry

Do not iron

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 (19)

4.5

79% Recommended this product

Mentions
03 November 2025Anonymous W
Verified Purchase

It’s a beautiful and comfortable body

Yes, I recommend this

It’s a beautiful and comfortable body. Very nice and soft material. Very happy from my purchase.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

01 November 2025AIMcK
Verified Purchase

Great look

Love this shaping body, it is so comfortable and looks great with so many different things. Wish you had it in different colours.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

26 October 2025AmandaGB
Verified Purchase

Perfect fit!

Yes, I recommend this

Just perfect, looks fantastic with just the right amount of stretch.

Helpful?

25 October 2025Rowan2015
Verified Purchase

A great addition to their thermal range

Yes, I recommend this

Great warmth, fitted well. Yes it is a snug fit but it is also a body shaper so you would expect this to be able to do the shaping you expect! I did initially find the turtle neck a little restricting at first wear, but this does loosen up after wearing a couple of times and I found it perfectly acceptable. I’ve worn it on its own with jeans, and under dresses as well for a smooth line. It shapes AND keeps me warm, which is what I was after. I bought the12-14 size as I am size 12, so if you are a 14 you may find it too tight depending on your build. Option suggestions - crew neck, other colours.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

15 October 2025Martinibianca
Verified Purchase

Will keep you warm in colder months

Yes, I recommend this

Good fit but glad I went up a size usually 12/14 the neck was higher than I expected i would like this in a v neck. body length was good my height is 5ft 4”

Reviewer Ratings

How did it fit?

A bit small

Helpful?

Reviewer Ratings

How did it fit?

A bit small

15 October 2025comfortSeekerJo
Verified Purchase

Thick and warm

Yes, I recommend this

I bought two sizes up from normal having read previous reviews. Thank goodness I did as it’s quite tight to put on. I didn’t feel the sizing is correct somehow. One size doesn’t fit all shapes. It’s a shame because it’s very good quality and comfortable where it fits properly.

Reviewer Ratings

How did it fit?

Small

Helpful?

Reviewer Ratings

How did it fit?

Small

24 September 2025MLWalker
Verified Purchase

Snug fitting go up a size

Yes, I recommend this

lovely quality, great neckline, not too high, good body length

Reviewer Ratings

How did it fit?

Small

Helpful?

Reviewer Ratings

How did it fit?

Small

24 February 2025dsbusa
Verified Purchase

Cosy cosy cosy

Yes, I recommend this

Love this and wish it came in more colours. Fits great, smoothing & warm. Thick so can be worn as a top in its own right and not just a base layer.

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

Style

Average

How did it fit?

True to size

Helpful?

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

Style

Average

How did it fit?

True to size

15 February 2025Billybobrob
Verified Purchase

Happy purchase

Yes, I recommend this

Very comfortable and feels warm and well made, would buy again

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

Style

Excellent

How did it fit?

True to size

Helpful?

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

Style

Excellent

How did it fit?

True to size

10 February 2025Chas22
Verified Purchase

Fabulous quality

Yes, I recommend this

Worth the money. Gives really good support and warmth.

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

Style

Excellent

How did it fit?

True to size

Helpful?

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

Style

Excellent

How did it fit?

True to size

07 February 2025Sandra5818
Verified Purchase

Great product

Fits really well, not bulky and keeps me really warm on the winter golf course!

Reviewer Ratings

Value for Money

Excellent

How did it fit?

True to size

Helpful?

Reviewer Ratings

Value for Money

Excellent

How did it fit?

True to size

28 January 2025Jjo52
Verified Purchase

Great product

Yes, I recommend this

Bought this for my wife and she loves it nice warm. Cosy. Not to thick and a good quality looks smart under a jumper but can be worn on its own a good price .

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

How did it fit?

True to size

Helpful?

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

How did it fit?

True to size

11 January 2025NorthamptonRicho
Verified Purchase

Value for Money

Yes, I recommend this

Well worth the money. Keeps you cosy on these bitterly cold winter days.

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

Style

Excellent

How did it fit?

True to size

Helpful?

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

Style

Excellent

How did it fit?

True to size

11 January 2025Greek Latina
Verified Purchase

Soft, beautiful for, great for the winter ❄️

Yes, I recommend this

This is a soft and beautiful fitting bodysuit, that keeps you warm! It has a discreet shaping tummy section that is comfortable and looks lovely with a pair of jeans or more formal trousers/ skirt. I’m a size 6 (32D) and the size 8-10 fits really well! Would love it in more colours 😍 P. S. If you buy other Heatgen thermals from M&S, the level of warmth is between a “light” and “medium”!

Reviewer Ratings

Quality

Excellent

Value for Money

Good

Style

Excellent

How did it fit?

True to size

Helpful?

Reviewer Ratings

Quality

Excellent

Value for Money

Good

Style

Excellent

How did it fit?

True to size

04 January 2025Teriamah
Verified Purchase

Great true fit, nice long arms and warm

Yes, I recommend this

I have now bought 4 of these. I'm a size and about the 10, it fits nice and snug and the neck is not suffocating. It's not a shapesuit therefore no hold which is fine. The bodysuit is nice, warm and comforting for a garment that is a fine yarn. I have quite long arms for a height of 5"6, the arm lengths are perfect and I don't need to keep pulling to lengthen them. The gusset poppers are comfortable, I have bought a variety of popper stud bodysuits and this is the best I've bought. This has become a wardrobe staple that I team with winter white wool trouser and my tan leather trousers

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

Style

Good

How did it fit?

True to size

Helpful?

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

Style

Good

How did it fit?

True to size

04 January 2025Val k
Verified Purchase

Just as described

Originally posted on marksandspencer.ie

Yes, I recommend this

Lovely fit, very warm, bought fur a skiing trip and wore it loads. Comfortable and well made.

Helpful?

23 December 2024SAHT
Verified Purchase

Good fit and warm!

Really good fit, smoothing and warm. Looks good when worn with jeans. I’m a size 18

Helpful?

20 December 2024M16hla
Verified Purchase

Great for shaping & warm too.

Yes, I recommend this

Was worried the smallest size 8-10 was going to be too big as I am a size 6 but it actually fits perfect. Gives brilliant shape & keeps you warm too .

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

Style

Excellent

How did it fit?

True to size

Helpful?

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

Style

Excellent

How did it fit?

True to size

14 December 2024True size 14
Verified Purchase

Ridiculously tiny

Ridiculous small I now have a 25 mile trip to return - they are 3 sizes below what’s on the labels

Reviewer Ratings

Style

Average

Helpful?

Reviewer Ratings

Style

Average

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