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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

This short sleeve thermal vest offers maximum warmth through innovative Heatgen™ technology. The regular fit with ribbed neck ensures a secure, draught-proof feel, while the fabric helps your body generate and retain heat during extremely cold temperatures. Perfect as a base layer shirt, the supersoft seams prevent chafing for all-day comfort and ease of movement. M&S Collection: Easy-to-wear wardrobe staples that combine classic and contemporary styles.

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 (369)

4.8

72% Recommended this product

Mentions
18 January 2026Brigett
Verified Purchase

Cosy and warm

Yes, I recommend this

Bought it for my husband. He has few of them now and he loves them. Thick and warm, comfortable and good fit

Helpful?

17 January 2026Kate575
Verified Purchase

Greater Winter Product.

Yes, I recommend this

Husband feels the cold, so got the extreme warmth vests. Much warmer for an 81 year old! Very happy with vests

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

16 January 2026Brumpolly
Verified Purchase

Warm and Toasty !

Yes, I recommend this

This is the warmest thermal vest in the store. My 85-year-old Husband really feels so cold and I have bought thermal vests in the past and they have been good but this one is absolutely super! He stopped moaning about the cold and he’s very very happy and warm. Well worth buying.!

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

12 January 2026Peterpilot
Verified Purchase

Great quality nice and warm

Yes, I recommend this

Lovely and warm on these cold mornings great quality

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

12 January 2026RolyMofo
Verified Purchase

Perfect!

Yes, I recommend this

Perfect under layer for working in an office seemingly frozen office.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

12 January 2026ChillyGra
Verified Purchase

Great thermal T-shirt

Yes, I recommend this

Soft and warming and long enough to tuck in, they can even be tumble dried. I cannot think of any negatives with them.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

11 January 2026LaraP67
Verified Purchase

Wash well

Lovely quality although quite expensive-very warm and wash well so should last

Helpful?

11 January 2026Acuffi1810
Verified Purchase

Perfect, warm and long

Yes, I recommend this

Great warm vest. Long enough for 6.4 tall man. Much better than an alternative other brand he bought! Washes well.

Helpful?

07 January 2026Super senior
Verified Purchase

Best ever thermals

Great products that I have bought for my husband for years.

Helpful?

06 January 2026Pintail6900
Verified Purchase

Warmth

Yes, I recommend this

Fit is excellent and the feel warm I hope last just as long as the ones they are replacing

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

05 January 2026
Verified Purchase

Good.

Yes, I recommend this

Needed in this cold weather. With the wool content.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

04 January 2026Heatwave1
Verified Purchase

Warm

Yes, I recommend this

My husband already had a couple of these but as he feels the cold he finds them ideal.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

01 January 2026LDB13
Verified Purchase

Good

Yes, I recommend this

Very good, something that hasn't changed over the years. Pricey but good

Helpful?

31 December 2025Helen 55
Verified Purchase

Great item

Yes, I recommend this

This is a lovely soft warm vest, just the job for wearing underneath a shirt when it’s chilly. It’s a good fit and good quality.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

24 December 2025PDTHFC
Verified Purchase

As expected good quality

Arrived as promised on time and quality as normal excellent

Helpful?

19 December 2025Panita
Verified Purchase

Excellent

Yes, I recommend this

Thick, warm, cosy feel - just what was needed. XXL was long too. Many M&S items are too short, made for wide, not tall.

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

15 December 2025Kunekune61
Verified Purchase

Warm, snuggly

Yes, I recommend this

Does what you want. Keeps you warm without being itchy or smothering

Helpful?

14 December 2025trueblue18
Verified Purchase

Cosy thermal top

Yes, I recommend this

My grandson wore this vest to an outdoor event and didn’t feel the cold during what was in his words “a freezing evening”. Very pleased with it.

Helpful?

13 December 2025RonKH
Verified Purchase

Excellent quality

Yes, I recommend this

Well made with plenty of room and really keeps you warm

Reviewer Ratings

Comfort

Excellent

Helpful?

Reviewer Ratings

Comfort

Excellent

12 December 2025Stormymist
Verified Purchase

Present

Yes, I recommend this

Present for my dad and is grate quality, didn’t go out of shape still nice and soft

Helpful?

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