These socks are absolutely brilliant! A game changer for my daughter who suffers with Raynards. They were also really helpful when ordering
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In January 2025, I purchased the Thermic heated mitts. They have never worked properly. The right one is now dead. I have both called and e-mailed customer service to inquire about repair. No response... See more
Company replied
Good product, makes insoles much easier to use. Difficult to order from UK as there wasn't an option in the drop down menu, turns out you need to go to a different website, it would be useful to hi... See more
I was searching for some replacement ski boot heated insole batteries for my wife's ski boots. Despite searching high and low for Sidas batteries, it was impossible to find a direct replacement. I con... See more
Company details
Written by the company
Therm-ic are the producers of innovative & technical clothing, accessories and dryers to support you in your adventures. ------- Therm-ic is built upon on many years of experience, which started with the invention of heating for ski boots. Building on the developments and patents of the last 20 years, the range of products now includes a whole series of high quality, approved solutions for your winter sports activities.
Contact info
Therm-ic, Sidas UK Ltd. Mintsfeet Road North, Kendal, Cumbria, LA9 6LZ, Kendal, United Kingdom
- 01539725817
- info@sidas.co.uk
- therm-ic.store
Replied to 33% of negative reviews
Typically replies within 2 weeks
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These socks are absolutely brilliant
These socks are absolutely brilliant! A game changer for my daughter who suffers with Raynards. They were also really helpful when ordering
Very quick delivery and the gloves are…
Very quick delivery and the gloves are perfect for my daughter. Good quality too.
Great product with excellent service
Great product, excellent service and quick delivery.
Not good enough !
Tried the heated socks on 2 occasions fully charged and on full power. Could not feel any heat at all so would not recommend.
Great service
Great service. Product is very good with a very competitive price. Customer care has been grate managing the delivery.
Going the Extra Mile and a Shining Halo
I was searching for some replacement ski boot heated insole batteries for my wife's ski boots. Despite searching high and low for Sidas batteries, it was impossible to find a direct replacement. I contacted Sidas in the hope of finding a source. I was quickly informed by Liam that they no longer had that model in their inventory and did not hold any stock. I thought that was the end and an expensive replacement set of insoles was necessary. Liam was an absolute gentleman and had a hunt around the facility and found some similar batteries lurking in dark and dusty corners. Without hesitation he sent them to me free of charge, despite me wishing to forward suitable recompense. You cannot and do not find service like that often in your life and I cannot thank Liam enough, hence the outstanding and superb review. Thank you Sidas and Liam deserves a pay rise.
Poor performance heated mitts & customer service
In January 2025, I purchased the Thermic heated mitts. They have never worked properly. The right one is now dead. I have both called and e-mailed customer service to inquire about repair. No response, even after 10 days. Terrible product, very expensive, does not work and customer service is non-existence.

Reply from Therm-ic UK
Heated mittens don’t work…
Heated mittens ordered and delivered within 48 hrs which I had paid for which was great. Didn’t have time to charge when received as flying to ski . Plugged in when arrived in France. After 10 hrs charge still on red and gloves wouldn’t turn on. Emailed company who claimed I needed to connect the batteries to gloves but had already done that. Another 10 hrs of charge and still no charge going into batteries . Another complaint sent and again a short response telling me to check connections . Have plugged in at home in the UK now and still gloves won’t charge. Now awaiting another response from company and await next stages . Very frustrating to have spent this money for a product that doesn’t work
Just another Gilet if it doesn’t have battery
Battery wasn’t included which makes the price nuts!
Therm-ic gloves: Save your money, these are not good!
The gloves felt great in a warm room but they offer very little when the temperatures fall. I was so unhappy that I returned the gloves only to be told that they were functioning normally. If that's the case, they are not fit for purpose.
Even if they did provide heat, the batteries cannot cope with a whole day, even on the lowest setting. The life cycle reduces in colder temperatures, so you can see the problems.
My advice, invest in good inner gloves and forget these...they have been an expensive mistake.
Lacking quality and customer support.
I was gifted a pair of heated socks last Christmas. They seemed great that season. The next season, one of the socks didn’t heat up and I emailed customer support. After some back and forth they won’t replace the sock unless I provide the original receipt from purchase, which we couldn’t track down. Additionally, if it were past 2 years they wouldn’t even do anything which is quite terrible for a product that gets used 3-4 months of the year and is extremely expensive.
Very disappointed in both the quality of the product and the customer support. I’ve used hot tronix for years and never had them deny a claim when their product stopped working.
very poor durability
I've bought five batteries and three pairs of socks in two years. Three of the batteries are no longer rechargeable after two years. Two of the three pairs of socks no longer conduct electricity. An extremely overpriced product that I personally wouldn't buy again.
Quick reply to an email and a immediate…
Quick reply to an email and a immediate despatch of goods. Great service.
Quick to respond to a query
Quick to respond to a query, answered with links to the products that were suitable for me. Great service.
I had a couple of questions for the…
I had a couple of questions for the help centre, in advance of making any purchases, who responded promptly and positively.
From making my online purchases through to receiving the goods, it all went seamlessly.
The staff were polite and tried to help…
The staff were polite and tried to help me with regards to finding a sock that would be a better size sock for me because the sock I bought was too big for my feet .
Unfortunately on this occasion they did not have the right size . However after discussing I was able to obtain the right size sock with another Therm-ic supplier
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