Whether you need thermal protection outdoors or instant warmth and softness at home, these Mens Thermal Long Johns in Charcoal will make your life warmer.
The traditional fit and classic ribbed fabric shape to your body’s natural contours for a more comfortable fit, keeping you wonderfully warm all winter long. Rated 0.45 tog, these men’s thermal long johns will keep you cosy, with a seamless fit for layering under your clothes.
Our love of warmth and comfort is backed up by proven science and over 50 years of technical expertise. At the core of our Heat Holders men’s thermal underwear is our cotton thermal blend, combining natural warmth and softness with man-made performance for the ideal balance between insulation, comfort and protection. But the real secret of our warmth lies inside: our expert brushing process creates a soft fur-like pile that holds even more warm air close to your skin, maximising thermal performance and comfort to keep you warmer for longer.
Heat Holders men's thermal underwear is sure to keep you warm on even the coldest days. We believe that whatever you’re doing, inside or out, you should feel comfortable and content so you can enjoy life to the full.
Please check the size guide above before purchase
Fibre Composition: 53% Polyester, 47% Cotton
Machine Washable at 30°C. Heat Holders can be tumble dried but are happiest when line dried.
Heat Holders Technology
Japanese-designed thermal yarn provides insulation with superior breathability and softness.
Innovative knitting technology produces our UK PATENTED long loop cushion pile to hold more warm air.
Our expert brushing process maximises the amount of warm air held in for unbeatable warmth.
HEATWEAVER® Insulation is a plush fur-like thermal lining that maximises the air held close to the body.
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Over 40,000 5 Star Reviews
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Long John's perfect had to get vests
Have not worn them yet.
My husband is really impressed with his thermal long John's, which have been keeping him warm and cosy
I never thought that I would become the type of person who wore thermal underwear and LJs (thoughts of Last of the Summer Wine come to mind) but it has become essential in these difficult times, both to stay warm and to help keep expensive energy bills down by allowing you to reduce the thermostat setting to 18 or 19 degrees. You don’t notice the reduced temperature when you wear these items. The cotton mix HeatHolder LJs are warm, comfortable and do not bobble or leave residue on your skin like the black material used for the lightweight equivalents (good though those are for spring and autumn). Highly recommended, especially for people working outside (like bricklayers for example) or in cold shops for long periods and if you want to save money on your heating bills (who doesn’t?) in a very cost effective way!
Perfect fit, was a present for my elderly dad and he loves it.
Over 40,000 5 Star Reviews
"These are the warmest socks I have ever worn. They are especially good in wellies or boots when the weather is icy."
Rambler and avid walker
“These are the warmest socks I've ever worn without making your feet 'sweaty'”
“Just the job! My feet have never been warmer in winter - will definitely buy some more”
“These socks are great for cold weather at the allotment and even better for walking the dogs in winter conditions.”