Sievi Thermo Alu

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The cool of autumn keeps the heat well, no experience of frosts yet.

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this works as it should

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Uses in my Feelmax Kuuva 5. Very good insulating function. It gets significantly warmer with these soles compared to those that came with the shoes. Highly recommended to use these soles in the winter.

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Do what they have to do, nice and warm.

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works

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The insole gives a little more insulation for the cold.

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Comfortably warming!

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Keeps heat well. The shoe also has a sea frost and a wool sock in severe frosts.

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Just ok in work shoes. Slightly warmer than a regular insole. However, it does not make a dizzying difference.

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I suspected the insoles at the beginning. How can these thin insoles warm my feet. From the very first moment, there was a feeling of warmth in the soles of the feet. I warmly recommend these insoles to everyone.