From Britain To The World Since 1982 


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About Us

British Thermals Building

Since 1982, we has been carefully manufacturing our flagship, proudly British Made Extra Warm Thermal Underwear at our factory in Leicester. Leicester is a city near the centre of England (United Kingdom) and historically has been the textile manufacturing capital of Europe.  

Over recent years, in addition to our flagship British made range, we have also introduced additional, competitively priced thermal underwear and complementary products which are manufactured abroad, but continue to be designed and quality controlled in the UK.  This is to allow everyone to be able to buy our products.  However, our British Made Extra Warm Thermals continue to be made in the heart of the United Kingdom.

Our thermals have a loyal and worldwide fan following and are considered to the very best in class.

Traditionally, we have supplied only trade customers, but thanks to the internet, we also sell directly to consumers. Along with our market leading products, we have worked hard to develop a first class service and offer highly efficient express delivery.

Even though our first true love is thermal underwear, over recent years we have further used our extensive design and manufacturing knowledge and experience to bring to market many more products.  We are grateful that these have been welcomed and appreciated by our large and loyal client base.

We are proud to say that, through this website, we send orders daily to consumers all over the world. If this is the first time that you are visiting us, please browse our range and if you have any questions, feel free to contact our Customer Service Department by clicking here.

We are confident that you will be delighted with your purchase and our service.

British Thermals is the retail trading division of R.S.T. International Ltd.