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Heatgen™ Maximum Thermal Funnel Neck Top

Product code: T329238

About this style

Lock in warmth with this Heatgen™ Maximum thermal top, designed for lightweight layering in cold weather. Made with added stretch, it moves with your body for a smooth, comfortable feel. The funnel neck and half zip offer adjustable coverage, while thumbhole cuffs keep sleeves securely in place and add a sleek, sporty finish. M&S Collection: versatile styles in modern shapes with unique and playful details.

M&S

Heatgen™ Maximum Thermal Funnel Neck Top

€33

Colour

Size

Free standard delivery over €75, otherwise €4.50

Reviews (158)

4.4

76% Recommended this product

Mentions
21 October 2026Suffolk Born

Fantastic

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Best thermals l have ever worn. Keeps me warm!. Best purchase ever

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

13 October 2026happymax

Excellent item

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Getting ready for the cold weather. Great item to keep out the draughts as a layer but smart enough on its own.

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

11 October 2026Bobberchop

Attractive warm top

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Very warm top. It is more like an individual top rather than a thermal that can be worn underneath someting else as it is fleecy to touch rather than jersey. not quite what I expected but keeping it anyway

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

08 October 2026SuperShaz

Cosy

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

So cosy and warm but you need to go at least two sizes up for it to feel comfortable. Love the half zip and the thumb holes.

Helpful?

04 October 2026gillmoss

Incorrect sizing

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

I love the products but the sizing are not correct I am usually 10/12 and bought the medium size which was way way too tight. Bought the larger and they were tight but I guess they are ment to be snug.

Helpful?

04 October 2026Jillllee

Great style but small

Originally posted on marksandspencer.com (UK)

A great looking top but very small, and close fitting.I’m ordering 2 sizes up

Helpful?

17 September 2026Doris234

Go up a size as they are a bit snug

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Really like this vest. Like the zip as can leave it slightly undone if needed. Keeps neck warm.

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

05 May 2026Weiner

Value for money.

Originally posted on marksandspencer.com (UK)

Comfortable and warm. Will save for colder 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

04 May 2026Atlantic Sea Kayaking

Max thermal funnel neck top

Yes, I recommend this

I will be wearing this top in Greenland next week and hope it keeps me warm!

Helpful?

09 April 2026J12DC

Comfortable

Originally posted on marksandspencer.com (UK)

No, I don't recommend this

Not as warm as I thought or hoped this would be. Will revert to tried and tested companies for technical wear.

Reviewer Ratings

How do you feel about the size?

Very small

Helpful?

Reviewer Ratings

How do you feel about the size?

Very small

04 April 2026Lesley218

Cosy for winter

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Just what I was looking for to keep me warm. Purchased a size bigger as didn't want it to tight. Lovely colour too.

Helpful?

01 April 202650 plus shopper

Great top

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Extremely warm and comfy, have 3 in different colours.

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

29 March 2026rquipp

Lovely material

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Very cosy and lovely to touch. Nice colour too. Fits to size.

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 March 2026Ti19

Warmy funnel neck

Originally posted on marksandspencer.com (UK)

Bought this for my mum, on a size 12 (as she normally wears medium), it was to tight on her, ended up trying it on and it does fit on me :o -normally i wear 8 on tops (small size). I'd definitely say its super warm and comfortable, soft material, no tags on the neck (normally causes me lots of stress) which is perfect.

Reviewer Ratings

How do you feel about the size?

Small

Helpful?

Reviewer Ratings

How do you feel about the size?

Small

21 March 2026Jpatric

Soft and warm

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Very soft and warm against the skin. Excellent fit nice and thin.

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

20 March 2026volders

Warm thermal

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Lovely and warm, cosy around the neck. Colours 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

19 March 2026Debba58

Beautifully soft and comfortable thermal wear!

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Lovely and soft. I bought a size 14 and I’m just under 12stone and 5ft 6” so 14 is a lovely close fit. My only issue is the zip has been seen really badly so when I zipped it all the way up it got stuck and took mr a good hour to undo it! Poor quality sewing. I would however say the shape of the collar is extremely flattering - love it!

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 March 2026jeanpull

Super soft

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Very comfortable and looks good with the joggers. Great value in sale.

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 March 2026Ninjoe

I went up a size still quite small , may return.?

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Good but small, warm and cosy great for under sweaters but I should have gone up 2 sizes

Reviewer Ratings

How do you feel about the size?

Small

Helpful?

Reviewer Ratings

How do you feel about the size?

Small

16 March 2026Nataliekwbeiwnbw

Runs very small

Originally posted on marksandspencer.com (UK)

Nice top but runs very small - I’m a size 12 and couldn’t physically get it on.

Helpful?

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