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M&S

Heatgen™ Maximum Thermal Short Sleeve Top

£25

Colour

Size

Also available in: Long Johns and Long Johns
Free standard delivery over £60

Product code: T147413W

About this style

Stay snug in extremely cold temperatures our maximum warmth thermal short sleeve top. Regular fit with ribbed stretch to the neck for a secure, draught-proof wear. Our clever Heatgen™ technology uses an innovative fibre blend, helping your body to generate and retain heat so you can stay warm when the weather gets chilly. Supersoft seams help prevent chafing.

Maximum warmth for keeping cosy in colder climates.

Details & care

Style

Regular fit

Features

Thermal

Soft and cosy brushed fabric that keeps warmth in

Heatgen™ technology

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

Composition

35% wool, 26% polyester, 23% viscose and 16% polyamide (exclusive of trimmings)

Care

Wash at 40°C

Do not bleach

Tumble dry medium temperature

Iron at low temperature

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 (338)

4.8

71% Recommended this product

Mentions
07 November 2025JW Caxton
Verified Purchase

Heatgen Maximum Thermal Short Sleeve Top

Yes, I recommend this

True to size, fits well, lovely soft feeling fabric and yes, it's very warm. Recommended.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

06 November 2025Anti woke
Verified Purchase

Great quality vest

Yes, I recommend this

Bought for birthday present so he hasn't worn this yet. However looks good quality and warm.

Helpful?

04 November 2025Dawn20
Verified Purchase

Product Cosy and Warm

Yes, I recommend this

Bought this for my partner and he thought it was very cosy and warm. The only one drawback was that I had to order online as they were not stocked in store in York for the Maximum warmth despite there was lots of the leggings.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

04 November 2025First Impressions
Verified Purchase

Waiting to test this properly!

Yes, I recommend this

Extremely warm and comfortable but not cold enough on match day yet to test it properly.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

02 November 2025Abs121212
Verified Purchase

Good quality

Yes, I recommend this

Lovely material and very thick and warm thank you vey much

Helpful?

27 October 2025greysurfer123
Verified Purchase

A happy customer

I bought three of these vests for my husband who really feels the cold, at £25 each they are expensive but he says they are worth it !!!

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

25 October 2025Crs 48
Verified Purchase

Good insulator

Yes, I recommend this

The only downside to this item is the neckline is higher than a normal t shirt. Not as comfortable to wear. Looks warm & hoping when the colder weather hits it will be warm

Reviewer Ratings

Comfort

Good

Helpful?

Reviewer Ratings

Comfort

Good

23 October 2025Mrs jb dursley
Verified Purchase

Really warm

Yes, I recommend this

Was value for money warm and easy to wear I would recommend to for tge winter

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

16 October 2025Jessdina
Verified Purchase

Good fit.

I bought the vest for my son. He takes part in a lot of outdoor winter activities. Skiing, fell walking etc. He hasn't worn it yet but says it is a good fit and will be ideal .

Helpful?

15 October 2025Bagel8
Verified Purchase

Thicker than the ‘medium thermals’

Yes, I recommend this

Fits larger size ladies, size 30-32. Wish M&S would do larger sizes in the women’s section. The best thermals.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

09 October 2025Wendy ak
Verified Purchase

Warm and very cosy

Keeps my husband cosy djring the winter specially shoulders

Helpful?

05 October 2025Rog17
Verified Purchase

Warm as Toast

Yes, I recommend this

Bought three of these many, many years ago & now require a new set. Just as warm & I’m ready for Winter!

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

04 October 2025Ozzi
Verified Purchase

Husbands Favourite.

Yes, I recommend this

Husband likes the white better. They are full of fur inside. Can't go wrong

Helpful?

01 October 2025Torah2
Verified Purchase

Winter and thermal vests needed.

Yes, I recommend this

Winter vests from you are good quality and warm. I have bought vests from you for many years.

Helpful?

24 September 2025sheriden
Verified Purchase

Great quality

Yes, I recommend this

The vest is soft against the skin very warm bought 3 best ive had in years good fit and good length

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

12 March 2025Richard II
Verified Purchase

Makes you warm to people

Yes, I recommend this

Bought by elderly person for winter warmth - in which it does just that

Reviewer Ratings

Quality

Excellent

Value for Money

Good

Style

Good

How did it fit?

True to size

Helpful?

Reviewer Ratings

Quality

Excellent

Value for Money

Good

Style

Good

How did it fit?

True to size

04 March 2025Bazza42
Verified Purchase

Good purchase

Very good, and warm, undershirt for the winter. Need a tight fit to maximise warmth.This is a re-order so I guess I must be satisfied!

Helpful?

01 March 2025Bones2
Verified Purchase

Best thermal tee shirt

Yes, I recommend this

Excellent thermal tee shirt. Already have a few of these from years gone by and needed to add another .

Reviewer Ratings

Quality

Excellent

Value for Money

Good

Style

Average

How did it fit?

A bit large

Helpful?

Reviewer Ratings

Quality

Excellent

Value for Money

Good

Style

Average

How did it fit?

A bit large

24 February 2025David1951
Verified Purchase

Great for cold weather!

Yes, I recommend this

Good quality, nice and warm and a good fit at a fair price

Reviewer Ratings

Quality

Excellent

Value for Money

Good

Style

Average

How did it fit?

True to size

Helpful?

Reviewer Ratings

Quality

Excellent

Value for Money

Good

Style

Average

How did it fit?

True to size

22 February 2025J246
Verified Purchase

Great for a man!

Yes, I recommend this

I bought this for myself but it is actually for a man. Not sure whether I was confused or the website is misleading. Anyway my husband likes it and it’ll be perfect for skiing.

Reviewer Ratings

Quality

Good

Value for Money

Good

How did it fit?

A bit large

Helpful?

Reviewer Ratings

Quality

Good

Value for Money

Good

How did it fit?

A bit large

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