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CHRISTMAS DELIVERY

M&S Collection

Heatgen™ Maximum Thermal Long Johns

€ 40

COLOURBlack
SIZE

Also available in: Long Johns and Vest
Free standard delivery over €50

Product code: T147412W

About this style

When the temperature drops, beat the chill in our thermal long johns. Regular fit with an elasticated waist and cuffed bottoms for snug and secure wear. Functional keyhole fly opening. 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. Brushback texture feels gentle against your skin, while supersoft seams ensure there's no 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

Christmas delivery and collection last-order dates

Standard Delivery

Order by Monday 16th of December

Store Collection

Order by Monday 16th of December

Delivery

Standard

FREE over €50, or €4.50

Collection

Collect from store

FREE

Returns

Ireland returns

FREE

Exclusions apply

Reviews (515)

4.7

72% Recommended this product

Mentions
2024 decembre 14Stud Muffin

Perfect Thermals

Originally posted on marksandspencer.com (UK)

Great quality and very comfortable, keeps you nice and warm!

Helpful?

2024 decembre 12Lyn12

Christmas pesent

Originally posted on marksandspencer.com (UK)

Bought as a Christmas present for my partner who works outside alot and needs this, along with the top and socks. Too early to give true review until I know what he thinks.

Reviewer Ratings

Value for Money

Excellent

Helpful?

Reviewer Ratings

Value for Money

Excellent

2024 decembre 12lucylucy23

So comfortable

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Really pleased, soft, long enough, comfortable, warm, wash great, dry very quickly and lightweight. What’s not to like

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

Style

Excellent

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

Style

Excellent

How do you feel about the size?

True to size

2024 decembre 12gandharv

Thermal Long John...

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

This is what i needed.. And completely satisfied with my purchase. Excellent in design,quality material and very comfortable too.

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

Style

Excellent

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

Style

Excellent

How do you feel about the size?

True to size

2024 decembre 10666girl

Cosy warm leggings

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

These leggings really kept me warm and cosy under my snow suit in Lapland the temperatures were -15

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

Style

Excellent

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

Style

Excellent

How do you feel about the size?

True to size

2024 decembre 07Jont123

Really warm

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Really warm for those cold winter walks, or when sitting at home

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

Style

Good

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

Style

Good

How do you feel about the size?

True to size

2024 decembre 07John C H

light weight, comfortable and effective

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Excellent Product. Have worn them consistently with the onset of cold weather, and effectively banished the problem of cold legs. The long John are made of a light fine fabric which means they comfortable to wear. Essential winter wear

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

How do you feel about the size?

True to size

2024 decembre 06fellafellaffalarree

Excellent Heat Management

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Not quite as stretchy as the thinner thermal trousers so if you like your ankles covered, go for a size up. Exceptionally warm, very comfortable and breathable. Would love to see these in dark red.

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

Style

Poor

How do you feel about the size?

A bit small

Helpful?

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

Style

Poor

How do you feel about the size?

A bit small

2024 decembre 05trendyman50

Great winter warmers

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

My husband has had these before needed some new ones he found them to be great for keeping him warm as he feels the cold a lot would definitely recommend.

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

Style

Excellent

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

Style

Excellent

How do you feel about the size?

True to size

2024 decembre 05Pete512

warm and cosy

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

i'm old and really feel the cold so i bought these at my age I don't wear clothes for fashion but for practical reasons, these work well, I wore them on a particularly cold day out and felt very comfortable, combined with the top I was very warm and cosy

Reviewer Ratings

Quality

Good

Value for Money

Good

Style

Fair

How do you feel about the size?

A bit small

Helpful?

Reviewer Ratings

Quality

Good

Value for Money

Good

Style

Fair

How do you feel about the size?

A bit small

2024 decembre 04Bea May

Warm and comfortable

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Bought for my husband who complained of being cold. I have not heard him mention being cold since wearing the Heatgen Thermal.

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

Style

Average

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

Style

Average

How do you feel about the size?

True to size

2024 decembre 03jws63

Great undergarment…

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Lovely soft warm material - bought for son for when he goes fishing …..states that they do the job of keeping him warm!

Reviewer Ratings

Quality

Good

Value for Money

Good

Style

Average

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

Quality

Good

Value for Money

Good

Style

Average

How do you feel about the size?

True to size

2024 decembre 03NeverFiFI

Toasty

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

toasty, really lovely and soft and most importantly warm

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

Style

Excellent

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

Style

Excellent

How do you feel about the size?

True to size

2024 decembre 02Tish05

Very Comfy and Warm

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

I bought these for my husband, as he was playing outside in a band at a Christmas Market. They certainly kept his legs warm and he commented how comfy they were. I only bought one to test so will now definitely be buying another pair.

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

Style

Good

Helpful?

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

Style

Good

2024 decembre 02DFerg

Not as warm or as good quality as they used to be.

Originally posted on marksandspencer.com (UK)

No, I don't recommend this

The quality of these thermals is a lot less than it was 5 or 6 years ago. I include the vests also in this statement. I still have a pair from about 6 years ago and the difference in thickness, and warmth is like black and white. The old ones are much better. These new ones used to be much thicker, heavier, and warmer. Now, if they get any thinner they will be see through, and the “Warmest” isn’t particularly warm any more. The white ones used to have a vaguely yellow tinge from the wool but that has been non-existent for a few years. I’m sure the percentages of wool and whatever else is the same, but the problem is that they appear to have massively reduced the quantity of each item in the material but they haven’t reduced the price. They used to be nice and toasty. Not any more. There’s now a lot better quality elsewhere and sometimes cheaper. They need to go back and make them to the quality of 10 years ago.

Reviewer Ratings

Quality

Poor

Value for Money

Poor

Style

Fair

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

Quality

Poor

Value for Money

Poor

Style

Fair

How do you feel about the size?

True to size

2024 decembre 02HeatherC28

Good quality

Originally posted on marksandspencer.com (UK)

Christmas present for my husband, to me they seem really good quality & fair price.

Reviewer Ratings

Quality

Excellent

Helpful?

Reviewer Ratings

Quality

Excellent

2024 decembre 02Captain Caveman

Great for keeping warm.

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Great to keep your legs warm in the winter. Very comfortable.

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

Style

Excellent

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

Style

Excellent

How do you feel about the size?

True to size

2024 decembre 02Ash84

Excellent

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Very warm and well recommended it to anyone especially now when it's getting cold.

Helpful?

2024 decembre 01Geoff 12

Great balls of fire

Originally posted on marksandspencer.com (UK)

Bought one pair then so pleased I bought 2 more Great product for this time of year Warm and comfortable

Helpful?

2024 novembre 30Marion2007

New thermal breeks

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Great quality and very cozy to wear when so cold and frosty

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

Style

Excellent

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

Style

Excellent

How do you feel about the size?

True to size

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