M&S Collection
Heatgen™ Maximum Thermal Long Johns
€ 40
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
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, 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
Standard
FREE over €50, or €4.50
Collect from store
FREE
Ireland returns
FREE
Exclusions apply
Discover more in Men's Thermal Underwear
Reviews (515)
Perfect Thermals
Originally posted on marksandspencer.com (UK)
Great quality and very comfortable, keeps you nice and warm!
Helpful?
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.
Helpful?
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
Helpful?
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.
Helpful?
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
Helpful?
Really warm
Originally posted on marksandspencer.com (UK)
Yes, I recommend this
Really warm for those cold winter walks, or when sitting at home
Helpful?
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
Helpful?
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.
Helpful?
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.
Helpful?
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
Helpful?
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.
Helpful?
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!
Helpful?
Toasty
Originally posted on marksandspencer.com (UK)
Yes, I recommend this
toasty, really lovely and soft and most importantly warm
Helpful?
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.
Helpful?
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.
Helpful?
Good quality
Originally posted on marksandspencer.com (UK)
Christmas present for my husband, to me they seem really good quality & fair price.
Helpful?
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.
Helpful?
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?
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?
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
Helpful?
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