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Mens Thermal Long Johns - Charcoal

  • Regular price £19.99
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Heat Holders

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

heat holders illustration of Japanese-designed thermal yarn

Japanese-designed thermal yarn provides insulation with superior breathability and softness.

heat holders illustration of innovative knitting technology

Innovative knitting technology produces our UK PATENTED long loop cushion pile to hold more warm air.

heat holders illustration of expert brushing process

Our expert brushing process maximises the amount of warm air held in for unbeatable warmth.

heat holders illustration of HEATWEAVER® Insulation

HEATWEAVER® Insulation is a plush fur-like thermal lining that maximises the air held close to the body.

5 Star Service

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Free UK Delivery & Returns

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Over 40,000 5 Star Reviews

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Customer Reviews

Based on 25 reviews
Thomas M.
excellent quality

Really do work, keep my legs warm when working outside

Evelyn R.

Son likes them for the cold weather. Recommend

Brian T.
Nice & Warm

As the title says, finally got to wear them when the temperature really dropped as I work outside in all weathers so it does what it says, they keep the cold and wind out which is perfect for me.


Very warm

Roy J.
Fitted Warmth

The sizing of these thermals are on the generous size to be honest. I found that a large vest size equates to a medium leggings size, unless you are keeping your feet warm as well.
Items are well made in European Union, comfortable and fit well, much better than "one size fits all" which don't actually fit anybody I know.
Taking everything into consideration Heat Holders seem to be a very good product, I've consigned my "one size fits all" to back of the cupboard or maybe throw them out!