M&S
Heatgen™ Maximum Thermal Long Johns
£28
Product code: T147412W
About this style
These thermal long johns combine warmth with comfort through our warming Heatgen™ fabric. Cut to a regular fit with an elasticated waist and cuffed bottoms for secure, comfortable wear. The base layer underwear keeps you warm throughout the day, while the brushback texture feels gentle on skin. Supersoft seams prevent chafing, and a keyhole fly adds everyday practicality. Perfect cold weather clothing for when temperatures drop. M&S Collection: Easy-to-wear wardrobe staples that combine classic and contemporary styles.
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
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 policyDiscover more in Men's Thermal Underwear
Reviews (663)
Warm!
Bought for travelling in a northern Norway winter. Have worn them under jeans and have kept me warm for the couple of hours each day when Im out walking.
Helpful?
Warm and cosy
Yes, I recommend this
Warm and cosy. Great to wear in the winter periods
Helpful?
First class. Very warm and cosy.
Yes, I recommend this
First class. Great quality would definitely buy again
Helpful?
Long John Silver
Yes, I recommend this
These are brilliant! I was looking for something to complement a lighter pair of trousers that I want to wear in cooler conditions and these are it! I've even worn them with winter cords to boost the warmth factor. They're close-fitting, comfortable and a superb purchase.
Helpful?
Good quality and reasonably priced
Yes, I recommend this
Very useful and beneficial at this time of year. Good quality and reasonably priced
Helpful?
Warm and comfy
Yes, I recommend this
Got these for my husband, he loves them, says they are very warm, no more cold legs.
Helpful?
Great quality
Yes, I recommend this
Perfect for me as I work in a very cold environment
Helpful?
Great when the heating broke down.
Yes, I recommend this
Hubby approves. Garment with flies is convenient. Kept him warm when our heating broke down.
Helpful?
Great quality
Lovely soft thermal leggings. My dad loves to wear these for extra warmth
Helpful?
Great quality
Yes, I recommend this
Brought for husband already has some just buying more
Helpful?
Excellent!
Yes, I recommend this
Well made and very comfortable. Would definitely buy again.
Helpful?
Very comfortable to wear
Yes, I recommend this
Great quality thermals that are warm, fantastic for the chilly Winter months. I could recommend this product if you feel the cold. They wash well, I have bought them in the past and would buy again.
Helpful?
Disappointed
No, I don't recommend this
Bought to give added warmth for my 91 year old husband but he says they’re no warmer than the ones he already has which aren’t thermal
Helpful?
Good &Bad
No, I don't recommend this
They were supposed to be size 38waist 31leg but they were much too tight I couldn’t even do them up the other trousers were a perfect fit
Helpful?
Highly recommend for all ages!
Yes, I recommend this
Bought for my son, who works outside throughout the night. With the recent dip in temperatures he was really suffering with the cold. They have made a huge difference to how he feels and he is planning on buying more. . Very comfortable and keep him warm.
Helpful?
Warm and comfy
Bought for my husband, he loves them. They are quite thick, but not too thick to fit perfectly under clothes. Definitely would buy again.
Helpful?
Amazing !
Yes, I recommend this
Excellent for the cold weather but it has to be cold to be comfortable
Helpful?
Helps to keep the heating off!
Yes, I recommend this
Significantly warmer than the medium version so battles with my husband about the heating are less when he wears these ones! Soft and comfortable for him too.
Helpful?
Comfortable
Comfortable and warm. Good size and fits well under trousers.
Helpful?
Keep warm
Yes, I recommend this
Very light to wear plus very warm and cosy to wear.
Helpful?
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